USN-6371-1: libssh2 vulnerability

Read Time:6 Second

It was discovered that libssh2 incorrectly handled memory
access. An attacker could possibly use this issue to cause
a crash.

Read More

Automation is key to effective and efficient pentest reporting

Read Time:21 Second

Graham Cluley Security News is sponsored this week by the folks at PlexTrac. Thanks to the great team there for their support! Getting high-quality, actionable pentesting reports doesn’t have to take hours. In fact, automating your processes with PlexTrac enables building a report in as little as five minutes! Conquer time-consuming processes, reduce potential for … Continue reading “Automation is key to effective and efficient pentest reporting”

Read More

USN-6370-1: ModSecurity vulnerabilities

Read Time:36 Second

It was discovered that ModSecurity incorrectly handled certain nested JSON
objects. An attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS
and Ubuntu 20.04 LTS. (CVE-2021-42717)

It was discovered that ModSecurity incorrectly handled certain HTTP
multipart requests. A remote attacker could possibly use this issue
to bypass ModSecurity restrictions. (CVE-2022-48279)

It was discovered that ModSecurity incorrectly handled certain file
uploads. A remote attacker could possibly use this issue to cause a
buffer overflow and a firewall failure. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
(CVE-2023-24021)

Read More

USN-6369-1: libwebp vulnerability

Read Time:15 Second

It was discovered that libwebp incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a
specially crafted image file, a remote attacker could use this issue to
cause libwebp to crash, resulting in a denial of service, or possibly
execute arbitrary code.

Read More

Fake Signal and Telegram Apps in the Google Play Store

Read Time:1 Minute, 22 Second

Google removed fake Signal and Telegram apps from its Play store.

An app with the name Signal Plus Messenger was available on Play for nine months and had been downloaded from Play roughly 100 times before Google took it down last April after being tipped off by security firm ESET. It was also available in the Samsung app store and on signalplus[.]org, a dedicated website mimicking the official Signal.org. An app calling itself FlyGram, meanwhile, was created by the same threat actor and was available through the same three channels. Google removed it from Play in 2021. Both apps remain available in the Samsung store.

Both apps were built on open source code available from Signal and Telegram. Interwoven into that code was an espionage tool tracked as BadBazaar. The Trojan has been linked to a China-aligned hacking group tracked as GREF. BadBazaar has been used previously to target Uyghurs and other Turkic ethnic minorities. The FlyGram malware was also shared in a Uyghur Telegram group, further aligning it to previous targeting by the BadBazaar malware family.

Signal Plus could monitor sent and received messages and contacts if people connected their infected device to their legitimate Signal number, as is normal when someone first installs Signal on their device. Doing so caused the malicious app to send a host of private information to the attacker, including the device IMEI number, phone number, MAC address, operator details, location data, Wi-Fi information, emails for Google accounts, contact list, and a PIN used to transfer texts in the event one was set up by the user.

This kind of thing is really scary.

Read More