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Gentoo: GLSA-202310-16 High: Executable Log4j Code Issue in UniFi

gentoo
Calendar Grey October 26, 2023
Dist Gentoo Esm H88
A critical notice concerning a remote code execution vulnerability in Ubiquiti UniFi leveraging log4j has been issued for Gentoo users. Immediate upgrade is recommended.
A vulnerability has been discovered in unifi where bundled log4j can facilitate a remote code execution

Summary

A bundled version of log4j could facilitate remote code execution. Please review the CVE identifier referenced below for details.

Topics%20covered

Topics Covered

security advisory high severity gentoo software update remote execution log4j unifi

Resolution

All Ubiquity UniFi users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-wireless/unifi-6.5.55"

References

[ 1 ] CVE-2021-4104 https://nvd.nist.gov/vuln/detail/CVE-2021-4104 [ 2 ] CVE-2021-45046 https://nvd.nist.gov/vuln/detail/CVE-2021-45046

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202310-16
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: Ubiquiti UniFi: remote code execution via bundled log4j
Date: October 26, 2023
Bugs: #828853
ID: 202310-16

Topics%20covered

Topics Covered

security advisory high severity gentoo software update remote execution log4j unifi

Synopsis

A vulnerability has been discovered in unifi where bundled log4j can facilitate a remote code execution

Background

Ubiquiti UniFi is a Management Controller for Ubiquiti Networks UniFi APs.

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Affected Packages

Package Vulnerable Unaffected ------------------ ------------ ------------ net-wireless/unifi < 6.5.55 >= 6.5.55

Impact

An attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code.

Workaround

There is no known workaround at this time.

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