PT-2024-21109 · Rhonabwy+1 · Rhonabwy+1
Erwan Legrand
·
Published
2024-02-10
·
Updated
2024-10-18
·
CVE-2024-25714
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Rhonabwy versions 1.1.13 and earlier
Description
The issue is related to HMAC signature verification, which uses a strcmp function. This function is vulnerable to side-channel attacks because it stops the comparison when the first difference is spotted in the two signatures. The fix involves using gnutls memcmp, which has constant-time execution.
Recommendations
For versions 1.1.13 and earlier, update to a version that uses gnutls memcmp for HMAC signature verification to prevent side-channel attacks.
As a temporary workaround, consider restricting access to HMAC signature verification until a patch is available.
Fix
Side Channel Attack
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Related Identifiers
Affected Products
Debian
Rhonabwy