Vulnerability Details : CVE-2023-31439
An issue was discovered in systemd 253. An attacker can modify the contents of past events in a sealed log file and then adjust the file such that checking the integrity shows no error, despite modifications. NOTE: the vendor reportedly sent "a reply denying that any of the finding was a security vulnerability."
Products affected by CVE-2023-31439
- cpe:2.3:a:systemd_project:systemd:253:-:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-31439
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-31439
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2023-31439
-
The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-31439
-
https://github.com/systemd/systemd/releases
Releases · systemd/systemd · GitHubRelease Notes
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https://github.com/kastel-security/Journald
GitHub - kastel-security/Journald: Three Vulnerabilities in Journald Forward Secure Log SealingPatch;Third Party Advisory
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https://github.com/systemd/systemd/pull/28885
journalctl: verify that old entries are not sealed with too recent key by felixdoerre · Pull Request #28885 · systemd/systemd · GitHub
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https://github.com/kastel-security/Journald/blob/main/journald-publication.pdf
Journald/journald-publication.pdf at main · kastel-security/Journald · GitHubTechnical Description
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