Tag Ubuntu

InfoSec Week 7, 2019

Ubiquiti network devices are being remotely exploited, via port 10001 discovery service. Results in loss of device management, also being used as a weak UDP DDoS amplification attack: 56 bytes in, 206 bytes out.

Researchers demonstrated that Intel SGX trusted enclave poses a security thread, when they implemented proof malware that bypasses antivirus protection by leveraging SGX properties. Find more information in the research paper named "Practical Enclave Malware with Intel SGX".

Looks like the diffusion layer of Russian symmetric ciphers Kuznyechik and hash function Streebog, have mathematical properties required for the backdoor. There is no theoretical attack yet, and I am not convinced that it is on purpose, but the construction is suspicious.

Google engineers have designed a new encryption mode for ChaCha stream cipher called Adiantum. The new encryption mode should be used on cheap ARM processors that does not have hardware support for AES, and it is almost 5x faster than AES-256-XTS.

Current versions of Ubuntu Linux were found to be vulnerable to local privilege escalation due to a bug in the snapd API.

Phones running Android OS can be compromised remotely by viewing malicious PNG image.

A new vulnerability in the runc, container runtime used by Docker, Kubernetes and others. allows container escape just by running a malicious image.

NCC Group published an interesting blog about a downgrade attack on TLS 1.3 and multiple other vulnerabilities in major TLS Libraries which they found last year.

Researcher Scott Gayou published a step by step guide on how to jailbreak Subaru Crosstrek 2018 head unit leveraging USB port and update mechanism.

According to the Airbnb presentation, 38 percent of bugs at Airbnb could have been prevented by using types.

You can try to find bugs in the Swiss eVoting System, as they opened a bug bounty program. There is also a source code available for registered bug hunters.

Google open sourced ClusterFuzz, an infrastructure used for fuzzing Chrome and OSS-Fuzz, continuous fuzzing pipeline of open source software.

InfoSec Week 29, 2018

The academics have mounted a successful GPS spoofing attack against road navigation systems that can trick humans into driving to incorrect locations. The novel part is that they are using real map data to generate plausible malicious instructions.

Folks from Cloudflare, Mozilla, Fastly, and Apple during a hackaton implemented Encrypted Server Name Indication (SNI). There are implementations in BoringSSL, NSS and picotls.

Good insight on how credit card thieves use free-to-play apps to steal and launder money from the credit cards.

Chromium recently introduced Cross-Origin Read Blocking (CORB) that helps mitigate the threat of side-channel attacks (including Spectre).

For anybody interested in reverse engineering, nice write up about the Smoke Loader malware bot unpacking mechanism and communication with the C&C.

A research on how to bypass memory scanners using Cobalt Strike’s beacon payload and the gargoyle memory scanning evasion technique.

Eset researchers analyzed ongoing espionage campaign against the Ukrainian government institutions.

The intercept summarized what the public has learned about Russian and U.S. spycraft from the Special Counsel Robert Mueller’s indictment of hackers.

Security researchers have uncovered a highly targeted mobile malware campaign that has been operating since August 2015 and found spying on 13 selected iPhones in India.

There is an exploit for Ubuntu Linux (up to 4.17.4) where other users coredumps can be read via setgid directory and killpriv bypass.

InfoSec Week 20, 2018

Major (probably not only) US cell carriers are selling access to the real-time phone location data.
Because, you know the Electronic Communications Privacy Act only restricts telecommunication companies from disclosing data to the government, it doesn't restrict disclosure to other companies. Which can resell back to the gov. Hacker News discussion on a topic is quite informative.

Guardian wrote that according to the Oracle findings, Android devices send detailed information on searches, what is being viewed and also precise locations to the Google. Even if location services are turned off and the smartphone does not have a Sim card or application installed.

A new report details a widespread campaign targeting several Turkish activists and protesters by their government, using the government malware made by FinFisher.

A new set of vulnerabilities affecting users of PGP and S/MIME were published. The main problem lies in how email clients handle the output of the encryption tool, the protocol itself is not vulnerable, GnuPG should be fine.

Cryptocurrency mining malware was found in the Ubuntu Snap Store.

Essential reading on how spies are able to shape narrative of a journalistic pieces by document leaking.

The US media has learned the identity of the prime suspect in the Vault7 WikiLeaks CIA breach. Should be a 29-year-old former C.I.A. software engineer, government malware writer.

Great blog post about math behind and existing implementations of the homomorphic encryption.

There is an article about the common encryption workarounds in the criminal investigations written by Orin S. Kerr and Bruce Schneier.

Sunder is a new desktop application for dividing access to secret information between multiple participants using Shamir's secret sharing method.

DARKSURGEON is a Windows packer project to empower incident response, malware analysis, and network defense.

InfoSec Week 16, 2017

Crooks are already using recently leaked NSA hack tools to exploit thousands of unpatched Windows machines.

Bosch Drivelog Connector dongle could allow hackers to halt the engine.

Android MilkyDoor malware lets attackers infiltrate phone's connected networks via Secure Shell (SSH) tunnels.

The Hajime IoT worm is hardening IoT devices (closing open ports for now) to lock out other IoT malware. The code is not weaponised, contains only white hat's message.

The guy found out how to trade other customers' stocks due to the bad implementation of the iPhone trading app.

NVIDIA is shipping node.js under the name "NVIDIA Web Helper.exe". As it's signed by the NVIDIA key, the application is whitelisted by Microsoft AppLocker, and can be used for bypassing protection.

Criminals are spreading financial malware using spam emails disguised as a payment confirmation email from Delta Air. Looks genuine. https://heimdalsecurity.com/blog/hancitor-malware-delta-airlines/

Some darkmarket real IP addresses can be found through the Shodan search.
"RAMP (Russian drug market, server in Russia) and Hydra (international drug market, server in Germany) are leaking.Anyone see other big ones?"
https://twitter.com/HowellONeill/status/855550034741309440 https://twitter.com/AlecMuffett/status/855542397165502464

Nice blog about the common mistakes done by developers when using encryption \ secrets.

Apple File System (APFS), introduced in March 2017, reverse engineered by Jonas Plum.

WikiLeaks publishes the User Guide for CIA's "Weeping Angel" tool - an implant designed for Samsung F Series Smart Televisions. Based on the "Extending" tool from MI5/BTSS, the implant is designed to record audio from the built-in microphone and egress or store the data.
https://wikileaks.org/vault7/#Weeping Angel

Funny research paper co-authored by Daniel J. Bernstein, "Post-quantum RSA", explores potential "parameters for which key generation, encryption, decryption, signing, and verification are feasible on today’s computers while all known attacks are infeasible, even assuming highly scalable quantum computers".
Funny part is that the actual parameters are "really" practical. Example: "For the 2Tb (256GB) encryption, the longest multiplication took 13 hours, modular reduction took 40 hours, and in total encryption took a little over 100 hours."

A local privilege escalation via LightDM found in Ubuntu versions 16.10 / 16.04 LTS.

fake sandbox processes (FSP) - script will simulate fake processes of analysis sandbox/VM software that some malware will try to avoid. Windows only. https://github.com/Aperture-Diversion/fake-sandbox