VulnerabilityModified
CVE-2016-7037
The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack.
HIGH 7.5EPSS 0.72%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.72% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-361
- Affected
- emarref/jwt
- Source
- secalert@redhat.com
References
- http://www.securityfocus.com/bid/95847
- https://github.com/emarref/jwt/pull/20Issue Tracking, Patch, Third Party Advisory
- https://github.com/emarref/jwt/releases/tag/1.0.3Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/95847
- https://github.com/emarref/jwt/pull/20Issue Tracking, Patch, Third Party Advisory
- https://github.com/emarref/jwt/releases/tag/1.0.3Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.