CVE-2023-28531
CRITICALCVSS 9.8/10EPSS 2.22%
Last modified
CVE-2023-28531 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.. EPSS estimates a 2.22% chance of exploitation in the next 30 days.
Description
ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | >= 8.9, < 9.3 |
| Netapp | Brocade Fabric Operating System | All versions |
| Netapp | Hci Bootstrap Os | All versions |
| Netapp | Solidfire Element Os | All versions |
References
- https://security.gentoo.org/glsa/202307-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230413-0008/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2023/03/15/8Mailing List, Release Notes
- https://security.gentoo.org/glsa/202307-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230413-0008/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2023/03/15/8Mailing List, Release Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-28531?
ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.
How severe is CVE-2023-28531?
CVE-2023-28531 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.22% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28531?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2023-28531?
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Scan your code nowSource: NVD / NIST