#VU103289 Code Injection in Logback - CVE-2024-12798

Vulnerability identifier: #VU103289

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-12798

CWE-ID: CWE-94

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Logback
Server applications / Other server solutions

Vendor: QOS.ch

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation in JaninoEventEvaluator extension when handling environment variables. A local user can inject specially crafted data into environment variables and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Logback: 0.2.5 - 1.5.12

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External links
https://logback.qos.ch/news.html#1.3.15
https://logback.qos.ch/news.html#1.5.13

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.