Month: October 2015

Oracle points patching firehose at 154 vulnerabilities

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Of course there’s a Java fix, there always is Sysadmins forced by circumstance or folly to support Java can get busy again, with 25 fixes for the product among the Scarlet Letter’s regular patch notice.

The good news is that Oracle says none of the vulnerabilities in its mammoth bug-splat had been exploited as of 19 October.

The fixes to Java SE and Java SE Embedded cover vulnerabilities in the CORBA (Common Object Request Broker Architecture), Remote Method Invocation (Java RMI), Java FX, serialisation, 2D, Java API for XML Processing (JAXP), Java Generic Security Services (JGSS), security and deployment sub-components, as well as various library flaws.

Oracle points patching firehose at 154 vulnerabilities
Oracle points patching firehose at 154 vulnerabilities

Over at the Big O’s security blog, regular bearer-of-bad-news Eric Maurice lists “Oracle database, Oracle Fusion Middleware, Oracle Hyperion, Oracle Enterprise Manager, Oracle E-Business Suite, Oracle Supply Chain Products Suite, Oracle PeopleSoft Enterprise, Oracle Siebel CRM, Oracle Industry Applications, including Oracle Communications Applications and Oracle Retail Applications, Oracle Java SE, Oracle Sun Systems Products Suite, Oracle Pillar Axiom, Oracle Linux & Virtualization, and Oracle MySQL” as getting fixes.

Of the Java SE fixes, he writes, 20 apply only to Java in the browser, the remaining five apply to both client and server Java SE, and 24 are remotely exploitable without authentication. Hooray.

There are eight fixes for the Oracle database, one of which (CVE-2015-4863, not yet described on Mitre) has a base score of 10, because it’s remotely exploitable without authentication.

There’s also a perfect 10 in Oracle Sun Systems’ Integrated Lights Out Manager (ILOM), and Maurice says as well as patching ILOM, sysadmins should block outside access to the software.


Despite Anti-Spying Pact, Chinese Hackers Continue to Attack US Targets

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Chinese attacks resumed one day after the pact was signed
The US and China anti-spying pact did not yield the desired results for some US companies, which, despite the pompous White House announcement, have yet to see a stoppage of attacks from known Chinese-sponsored hacking groups.

While only a week ago we were reporting on some arrests made by the Chinese government among its own cyber-intelligence forces, the situation is not as rosy as we were led to believe.

Despite Anti-Spying

According to US cyber-security vendor CrowdStrike Inc., attacks from Chinese hackers were recorded on a regular basis before, during, and after the Obama-Xi presidential meeting, and the subsequent announcement of the US-Chinese anti-spying agreement.

CrowdStrike gathered this information with the help of its CrowdStrike Falcon security platform, installed on the IT infrastructure of multiple Fortune 500 companies.

Attacks were recorded one day after the anti-spying pact was signed

As the security vendor is reporting, on September 26, a day after the anti-spying pact was announced, known Chinese-sponsored hackers tried to infiltrate the network of a US company activating in the technology field.

The attacks slowly continued in the ensuing days, and CrowdStrike recorded multiple attempts on five tech companies and two firms from the pharmaceutical sector.

These attacks were intentionally constructed, aimed and carried out so they would allow attackers to exfiltrate valuable intellectual property from the target’s servers, something expressly prohibited by the official US-China agreement.

Attribution to Chinese state-sponsored hacking groups was easy

CrowdStrike says that the MO of these attacks followed previously recorded patterns employed by Chinese spying groups in the past, meaning the hackers relied on compromising Web servers, and then, using SQL injections, gaining access to a company’s internal network via the China Chopper webshell.

The PlugX and Derusbi malware strands were also detected in some of the attacks, both known tools used by Chinese-sponsored hackers in the past.

“So does this evidence of ongoing intrusions into the commercial sector from China indicate the failure of the U.S.-China cyber agreement?” asks Dmitri Alperovitch, CrowdStrike Co-Founder and CTO. “That depends on what we do about it, and how long the current situation persists.”

Many security and cyber-espionage experts have warned that the attacks might not stop and that this pact is just for show, but as Mr. Alperovitch has highlighted, the success of this agreement now resides solely in the response the US government gives to Chinese authorities after the recent incidents.


‘All Android devices’ vulnerable to new LTE security flaw

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A flaw in the implementation of a security feature on the mobile networks of U.S. providers AT&T and Verizon could put every connected Android device at risk of eavesdropping and identity spoofing, according to a recent report.

Devices on AT&T and Verizon networks are vulnerable to “loss of privacy, incorrect billing, and data spoofing.”

AT&T and Verizon’s implementations of LTE are said to be vulnerable to “to several issues” that could result in eavesdropping, data spoofing, and over-billing for potentially millions of phones.

Android devices on these networks are at most risk because the software “does not have appropriate permissions model” for LTE networks.

'All Android devices' vulnerable to new LTE security flaw
‘All Android devices’ vulnerable to new LTE security flaw

-Mobile customers were affected but the issue has since been “resolved,” a spokesperson said.

Apple products are not affected.

The advisory, posted by Carnegie Mellon University’s public vulnerability database (CERT) on Friday, was based on a paperpublished by Korean academics and security researchers, which call for a “comprehensive solution that eliminates the root causes at mobile devices, mobile platforms, and the core network.”

LTE (also known as 4G) relies on packet switching, a common way of sending data across the internet, rather than the old method of circuit switching. This new method of sending data allows for new kinds of attacks, particularly against the Session Initiation Protocol (SIP), nowadays more commonly used in voice calls and instant messaging.

Researchers have found a method that exploits the way that SIP works, by spoofing phone numbers for calls or text messages. It’s also possible for an attacker to obtain free bandwidth for more data-intensive activities, like video calling, without incurring any additional costs. In some cases, an attacker can establish multiple SIP sessions at the same time, which could lead to a denial-of-service attack on the network.

The advisory said each network was vulnerable to “one or more” of the issues. CERT, which published the advisory, said it was currently unaware of a practical fix to the issues.

T-Mobile and Verizon were both identified as being at-risk from the peer-to-peer attacks. The researchers had not conducted full testing on AT&T but said it was likely at risk.

The researchers warned create a peer-to-peer network within that cell carrier’s network, allowing an attacker to “directly retrieve data from other phones,” the advisory said.

In one example, a malicious Android app could quietly make phone calls without the user’s knowledge. That could be used to generate money on premium lines, over-billing, as well conducting targeted eavesdropping.

The researchers said every version of Android was at risk, whereas other attacks were network dependent.

When contacted, a Google spokesperson said the company will fix the issue for Nexus devices as part of its November Monthly Security Update, but did not confirm which Android versions were affected.

It’s also not clear when a patch will land for other affected Android devices, as these are carrier dependent.

An AT&T spokesperson did not immediately provide comment. An email to Verizon was not returned. We will update the piece if we hear back.


Google, Facebook, Microsoft and buddies stick a bomb under hated CISA cyber-law

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Some of the biggest names in the tech industry have issued a public protest against the proposed Cybersecurity Information Sharing Act (CISA) working through US Congress.

An open letter protesting the bill was sent by the Computer and Communications Industry Association (CCIA), an industry body whose members include Microsoft, Google, Facebook, Amazon, Nvidia, eBay, and Yahoo!

The CCIA says that the legislation, as written, will have dire consequences for the American IT industry. (And, we presume, great news for non-US tech companies.)

“CISA’s prescribed mechanism for sharing of cyber threat information does not sufficiently protect users’ privacy or appropriately limit the permissible uses of information shared with the government,” it reads. “In addition, the bill authorizes entities to employ network defense measures that might cause collateral harm to the systems of innocent third parties.”

CISA would allow the government and companies to share people’s private information that federal investigators can analyze and look at for linkages to crime and terrorism. In return for sharing data, the companies receive indemnity against lawsuits for privacy and antitrust laws from customers.

Although lawsuits might be difficult. The bill’s language specifically excludes the government from having to reveal what information it is harvesting to freedom-of-information requests, so you’ll never know if your browsing habits or online messages are being viewed by government investigators.

The bill is a rewritten version of CISPA, which you may remember from protests in 2013 that saw over 400 websites go dark. That killed the bill, but a year later it was back, minus a digit, in a slightly amended form.

“While appropriately constructed cybersecurity information sharing legislation can provide a more efficient regime for the voluntary sharing of appropriately limited information between the private sector and government, it is not the only means through which information sharing can occur,” the CCIA letter notes.

“Current legal authorities permit companies to share cyber threat indicators with the government where necessary to protect their rights and the rights of their users, and should not be discounted as useful existing mechanisms.”

Supporters of the bill say that privacy safeguards exist and that users’ personal information can be protected. But the bill has raised the hackles of many in the technology space, and even some government agencies.

Google, Facebook, Microsoft and buddies stick a bomb under hated CISA cyber-law

Rather bizarrely, the Department of Homeland Security came out against the bill in August. The DHS is concerned that all this internet data is going to federal agencies directly, rather than funneling it through a central database run by, for example, the Department of Homeland Security.

The CCIA’s opposition will be a welcome fillip to opponents of the bill, and comes as Congress iscurrently considering the new legislation. In the Senate, CISA has already galvanized politicians to oppose the legislation, led by Senator Ron Wyden (D-OR) and presidential candidates Bernie Sanders (I-VT) and Rand Paul (R-KY).



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Profesionales de hacking ético y servicios de auditoría de seguridad informática normalmente usan escáner para revisar la seguridad. Escaneo de todas las direcciones IP en Internet no es un trabajo fácil, y si usted no tiene los recursos de un botnet, un simple escaneo puede tomar meses. Va a ser muy difícil, si usted quiere tomar una grande foto de internet porque hacer un escaneo de las redes de internet ha tomado típicamente semanas o meses para terminar. Sin embargo, ahora esto es posible, explica expertos de servicios de seguridad informática con la ayuda de nuevas herramientas como ZMap, Masscan y otras. En este artículo vamos a cubrir diferentesherramientas avanzadas y muy rápidas de escaneo de puertos.


ZMap está diseñado para ejecutar escaneos generalizados del espacio de direcciones IPv4 o gran parte de ellas. Es una poderosa herramienta para los investigadores de servicios de auditoría de seguridad informática, y se puede escanear el espacio de direcciones IPv4 entero con más de 1.4 millones de paquetes por segundo.

ZMap no pretende reemplazar los escáneres generales como Nmap, cual es excelente para el escaneo de subredes en profundidad. ZMap está diseñado para hacer un escaneo superficial – por lo general de un solo puerto o servicio – de todo el Internet, o al menos el Internet IPv4, desde una sola computadora dedicada, en menos de una hora. Ame Wilson, una consultara de servicios de auditoría de seguridad informática menciona que ZMap es capaz de escanear el espacio de direcciones públicas IPv4 más de 1300 veces más rápido que el Nmap.

ZMAP es competente de trabajar tan rápido porque utiliza grupos de cíclicos multiplicativos. ZMap ha sido diseñado para conseguir el paralelismo y el rendimiento. En primer lugar, es completamente sin estado, lo que significa que no conserva un estatus por conexión. En lugar de mantener una lista gigante de paquetes enviados, y el tiempo que han estado ahí, y cuánto más tiempo debe esperar para cada uno, y cuidadosamente actualización de la lista con cada respuesta; ZMAP simplemente deja todo eso a través de grupos de cíclicos multiplicativos explica Ame Wilson, consultara de servicios de auditoría de seguridad informática.

En segundo lugar, envía en paralelo tantos paquetes como la red lo permite, con el fin de lograr la mayor tasa posible. Los paquetes se envían en un orden aleatorio, por lo que si mucha gente hacen juntos no haya un ataque DDOS, de esta manera se reduce la probabilidad de sobrecarga de una única red. Aunque cada paquete sucesivo sigue una estricta secuencia algorítmica, los números IP rebotan en todo el espacio de direcciones IPv4. Como resultado, usted no recibe cientos o miles de paquetes que convergen en una sola subred al mismo tiempo.

Debido a estas razones con ZMAP podemos escanear alrededor de 3.7 billones de direcciones en las direcciones IPv4, en una hora así que con ZMAP realmente puede revisar todo el Internet.


Por defecto, ZMap realizará un escaneo SYN TCP en el puerto especificado a la máxima velocidad posible. Una configuración más conservadora que escaneará 10,000 direcciones aleatorias en el puerto 80 en un máximo 10 Mbps se puede ejecutar de la siguiente manera:

$ ZMap –bandwidth=10M –target-port=80 –max-targets=10000 –output-file=results.csv

ZMap puede utilizarse también para explorar bloques CIDR o subredes específicas. Por ejemplo, para escanear sólo y en el puerto 80, ejecute:

ZMap -p 80 -o results.csv

Acuerdo con experto de servicios de seguridad informática, por defecto, ZMap entregará una lista de direcciones IP distintas que respondieron correctamente (por ejemplo con un paquete SYN ACK). Le recomendamos utilizar un archivo de lista negra, para excluir tanto el espacio IP reservado/asignado (por ejemplo, multicast, RFC1918), así como las redes que soliciten ser excluidos de escaneos. Por defecto, ZMap utilizará un archivo de lista negra simple que contiene direcciones reservadas y no asignadas en /etc/ZMap/blacklist.conf.

MASSCAN : Escáner puertos de muchas IP’s

Este es el escáner de puertos de Internet más rápido, ya que puede escanear todo el Internet en menos de 6 minutos con la transmisión de 10 millones de paquetes por segundo, acuerdo con profesor de hacking ético. Produce resultados similares a Nmap y utiliza transmisión asíncrona. La principal diferencia es que esa herramienta es más rápido que los otros escáneres. Además, es más flexible, permitiendo rangos de direcciones arbitrarias y rangos de puertos. Masscan utiliza una pila TCP/IP personalizada y eso significa que algo que no sea escaneo de puertos simples causará variación con la pila TCP/IP local. Esto significa que usted tiene que utilizar la opción -S para utilizar una dirección IP independiente, o configurar su sistema operativo para usar cortafuegos en los puertos que Masscan usa.

Aunque Linux es la plataforma principal para esa herramienta, el código funciona bien en muchos otros sistemas como.

  • Windows w/ Visual Studio
  • Windows w/ MingGW
  • Windows w/ cygwin
  • Mac OS X /w XCode
  • Mac OS X /w cmdline
  • FreeBSD

Para ir más allá de 2 millones de paquetes por segundo, necesita un adaptador de Ethernet de 10 gbps de Intel y un driver especial conocido como “PF_RING ADN”. Masscan no necesita ser reconstruido con el fin de utilizar PF_RING. Para utilizar PF_RING, es necesario construir los siguientes componentes:

  • (instalado en /usr/lib/
  • pf_ring.ko (su controlador de kernel)
  • ixgbe.ko (su versión del controlador de Ethernet de 10 gbps de Intel)

Masscan puede hacer algo más que detectar si los puertos están abiertos explica expertos deservicios de seguridad informática. También puede completar la conexión TCP y la interacción con la aplicación en dicho puerto con fin de agarrar la información de “banner”. El problema con esto es que Masscan contiene su propia pila TCP / IP separada del sistema se ejecuta en. Cuando el sistema local recibe un SYN-ACK desde el objetivo, responde con un paquete RST que mata la conexión antes de Masscan puede agarrar banner. La forma más fácil de evitar esto es asignar Masscan una dirección IP independiente.

Cómo escanear todo Internet

Mientras que es útil para redes más pequeñas y redes internas, el programa está diseñado realmente con todo Internet en mente

# Masscan -p0-65535

Escaneo de todo el Internet es malo. Por un lado, las partes de Internet reaccionan mal a analizarlos. Por otro lado, algunos sitios siguen a los escaneos y se suman su IP en una lista de prohibiciones, que le llevará, cortafuegos de partes útiles de Internet. Por lo tanto, recomendamos excluir una gran cantidad de rangos. Para la lista negra o excluir rangos, puede utilizar la siguiente sintaxis:

# Masscan -p0-65535 –excludefile exclude.txt


Scanrand es un escáner de puerto de alta velocidad y route-tracer explica profesor de hacking ético de international institute o cyber security. Su alta eficiencia en la exploración se encuentra en su esquema de trabajo en particular. Es un escáner de red rápido que puede escanear hosts individuales hasta las redes muy grandes de manera eficiente. Scanrand puede hacer lo que se llama el escaneo TCP sin estado, que lo distingue de los otros escáneres de red. Scanrand toma un poco de enfoque diferente del escáner de red típico. Se implementa “dispara y olvida” ideología para escanear mezclando con un poco de matemáticas.


Scanrand se divide sí en dos procesos. Un proceso es responsable de hacer nada más que el envío de paquetes SYN usando libnet. El otro proceso es responsable de recibir las respuestas de los equipos remotos enviados utilizando libpcap. Una cosa importante a tener en cuenta es que estos procesos funcionan de forma independiente. No hay consultas con el otro proceso sobre “¿Usted envía este paquete?” o, “¿ Esto es un paquete válido?” Scanrand guarda lista de direcciones IP que están esperando una respuesta y el proceso de envío no espera una respuesta en absoluto. Se dispara un SYN, y luego pasa a la siguiente computadora dejando el proceso de recepción para resolver la avalancha de las respuestas.


Unicornscan es una herramienta de código abierto (GPL) diseñada para ayudar en la recopilación de información y auditoría de seguridad. No se puede negar que Nmap establece el estándar para la exploración de puertos en Windows y sistemas UNIX. Sin embargo escaneo UDP y TCP (65k puertos) tardan mucho tiempo para terminar. Hay otro escáner que sobresale en la velocidad; Unicornscan es un escáner de puertos asincrónico sin estado que implementa su propia pila TCP / IP. Unicornscan pasa los puertos que se encuentra a Nmap y / o Amap para seguir con análisis.


Mejores Prácticas de Escaneo

Expertos de servicios de auditoría de seguridad informática ofrecen estas sugerencias para los investigadores que realizan escaneos en todo el Internet como directrices para la buena ciudadanía de Internet.

  • Coordinar con los administradores de redes locales para reducir los riesgos.
  • Verifique que los escaneos no abrumar a la red local o el proveedor de internet.
  • Señalan la razón de los escaneos en las páginas web y entradas de DNS de las direcciones del origen.
  • Explicar con claridad el objetivo y el alcance de los escaneos en todas las comunicaciones
  • Proporcionar un medio simple de la exclusión voluntaria y honrar las solicitudes con prontitud.
  • Llevar a cabo las exploraciones no más grande o más frecuente de lo que es necesario para los objetivos de investigación.
  • Difundir el tráfico de exploración sobre las direcciones y tiempo cuando sea posible.

No hace falta decir que los investigadores de escaneos deben abstenerse de explotar vulnerabilidades o acceder a los recursos protegidos, y debe cumplir con todos los requisitos legales especiales en sus jurisdicciones.

Los problemas de seguridad y problemas éticos

Como de costumbre, la capacidad de descubrir casi instantáneamente las redes y computadoras que tienen vulnerabilidades de seguridad puede ser una buena cosa para los investigadores de sombrero blanco, pero pueda ser utilizado para el motivo malo por los hackers. Estos son seguramente buenas herramientas y probablemente serán adoptadas por muchos investigadores. Sin embargo, eso poderosos escáneres de Internet podrían ser utilizados por los hackers para actividades maliciosas como la detección y la explotación de las vulnerabilidades. La única cosa que un atacante necesita es una máquina potente y una red con buen ancho de banda. Hoy en día, estos requisitos se pueden satisfacer fácilmente mediante el lanzamiento de una máquina virtual en la nube. La existencia de estas herramientas demuestra también que la ventana de tiempo entre la presencia de vulnerabilidad y su detección por los hackers es corta día a día. Por esta razón, es importante asegurar adecuadamente su propia infraestructura.

Profesores de hacking ético recomiendan que estas herramientas deban ser usadas con cuidado, sin invadir la privacidad de otra persona como cualquiera puede usarlos.


Chrome finally kills off the HTTP-HTTPS “mixed content” warning

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Slightly alarming and not wholly useful yellow triangle is being retired.

In the new version of Chrome, which should be rolling out to everyone today, the “mixed content” warning—that mysterious little yellow “caution triangle” in the address bar—will finally be removed. Instead, sites with a mix of HTTP and HTTPS content will show a normal, grey piece of paper, as if it’s a regular HTTP-only website.

According to Google, this change is intended to “encourage site operators to switch to HTTPS sooner rather than later.” The problem is that it’s almost impossible to switch completely from HTTP to HTTPS in one fell swoop—there are just too many factors that need to be tested and debugged. At the same time, webmasters weren’t keen to begin the migration process to HTTPS because of that pesky mixed content warning, which had a tendency to spook less-experienced users of the Information Superhighway. This was far from an optimal solution, according to Google: “During this [migration] process the site may not be fully secured, but it will usually not be less secure than before.”


As a result, in Chrome 46 (on desktop PCs, at least), there will be just three security states: a green padlock (full HTTPS), a red padlock (broken HTTPS), and a grey piece of paper (HTTP). “We’ve come to understand that our yellow “caution triangle” badge can be confusing when compared to the HTTP page icon, and we believe that it is better not to emphasize the difference in security between these two states to most users,” says a Google blog post.

In the long term, Google eventually plans to reduce Chrome’s security states to just two: secure (full HTTPS) and non-secure (everything else). The goal of this hardcore proposal is to “more clearly display to users that HTTP provides no data security.”

Chrome 46, without the mixed security warning, was released to the stable channel yesterday; you may already be running it. If not, your browser should update soon.


Angler Exploit Kit Blasts Daily Mail Visitors Via Malvertising

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There has been a lot of buzz about the powerful Angler Exploit Kit in recent days. One thing is for sure, the gangs using it are extremely resourceful and won’t let attempts at slowing them down get in the way.

We detected an attack that happened via a sophisticated malvertising campaign we had previously documented on this blog: the SSL malvertising attack via Microsoft Azure.

This time it struck on popular British newspaper the Daily Mail which accounts for 156 million monthly visits according to SimilarWeb.

Infection flow:

  • Ad call:[sas_target]&visit=m&tmstp=[timestamp]&clcturl=
  • Fake SSL ad server (malvertising)
  • Fake advert for (malvertising)
  • iframe(1)
  • iframe(2)
  • Angler Exploit 

Angler Exploit Kit Blasts Daily Mail Visitors Via Malvertising

Malvertising has been one of the main infection vectors and continues to affect large publishers and ad networks through very distinct campaigns, very much like a whack-a-mole game.

In addition to spreading via compromised websites, Angler EK leverages malvertising thanks to several different threat actors who use clever ways to go undetected as long as possible or are able to quickly adapt and get back on their feet if one of their schemes gets too much attention and is disrupted.

During the past months we have been working very closely with ad networks, publishers, cloud providers and other companies that have been abused by these attacks.

In addition, we hope that well documented cases such as this one help consumers to realize that malvertising is a very dangerous and yet often misunderstood threat. There is no such thing as a safe website anymore and it is everyone’s responsibility to ensure their devices are fully patched and well protected.

We contacted the affected publisher (DailyMail) and related ad networks right when we found out about this incident. On 10/12, we were informed by MediaMath that the malicious creative had been disabled.

Malwarebytes Anti-Exploit users were already protected against this attack, thanks to its proactive exploit mitigation capabilities.