8.1
CVE-2024-7589
- EPSS 2.04%
- Veröffentlicht 12.08.2024 13:38:44
- Zuletzt bearbeitet 21.11.2024 09:51:46
- Erkennungen
LoginOpenSSH pre-authentication async signal safety issue
A signal handler in sshd(8) may call a logging function that is not async-signal-safe. The signal handler is invoked when a client does not authenticate within the LoginGraceTime seconds (120 by default). This signal handler executes in the context of the sshd(8)'s privileged code, which is not sandboxed and runs with full root privileges. This issue is another instance of the problem in CVE-2024-6387 addressed by FreeBSD-SA-24:04.openssh. The faulty code in this case is from the integration of blacklistd in OpenSSH in FreeBSD. As a result of calling functions that are not async-signal-safe in the privileged sshd(8) context, a race condition exists that a determined attacker may be able to exploit to allow an unauthenticated remote code execution as root.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 2.04% | 0.786 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 8.1 | 2.2 | 5.9 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| CISA-ADP | 8.1 | 2.2 | 5.9 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
CWE-364 Signal Handler Race Condition
The product uses a signal handler that introduces a race condition.
https://security.freebsd.org/advisories/FreeBSD-SA-24:08.openssh.asc
https://www.cve.org/CVERecord?id=CVE-2006-5051
https://www.cve.org/CVERecord?id=CVE-2024-6387
https://security.netapp.com/advisory/ntap-20240816-0002/