CVE-2024-8158
6.5 · MEDIUMOverview
CVE-2024-8158 is a medium-severity vulnerability affecting 9front lib9p. It was published on August 25, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A bug in the 9p authentication implementation within lib9p allows an attacker with an existing valid user within the configured auth server to impersonate any other valid filesystem user.
This is due to lib9p not properly verifying that the uname given in the Tauth and Tattach 9p messages matches the client UID returned from the factotum authentication handshake.
The only filesystem making use of these functions within the base 9front systems is the experimental hjfs disk filesystem, other disk filesystems (cwfs and gefs) are not affected by this bug.
This bug was inherited from Plan 9 and is present in all versions of 9front and is remedied fully in commit 9645ae07eb66a59015e3e118d0024790c37400da.
Remediation
Check the references section for vendor advisories and patches from 9front. Update lib9p to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| 9front | lib9p | >= 0, < 2024-08-24 | Affected |
Frequently Asked Questions
What is CVE-2024-8158?
CVE-2024-8158 is a medium-severity vulnerability affecting 9front lib9p. It was published on August 25, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2024-8158?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2024-8158?
Check the references section for vendor advisories and patches from 9front. Update lib9p to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2024-8158?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-8158 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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