Privilege escalation in bpftrace

1) Creation of temporary file in directory with insecure permissions

EUVDB-ID: #VU99853

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-2024-2313

CWE-ID: CWE-379 - Creation of Temporary File in Directory with Insecure Permissions

Exploit availability: No

Description

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

The vulnerability exists due to software loads kernel headers from an insecure temporary directory. A local user can place malicious links headers into the temporary directory and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

bpftrace: 0.8 - 0.20.4

CPE2.3

• cpe:2.3:a:bpftrace:bpftrace:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:bpftrace:bpftrace:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:bpftrace:bpftrace:0.9.1:*:*:*:*:*:*:*

External links

https://github.com/bpftrace/bpftrace/commit/4be4b7191acb8218240e6b7178c30fa8c9b59998
https://bugzilla.redhat.com/show_bug.cgi?id=2269014

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.