Vulnerability CVE-2016-7037
Published: 2017-01-23   Modified: 2017-01-24

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.

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Jwt project -> JWT 

 References:
http://www.securityfocus.com/bid/95847
https://github.com/emarref/jwt/pull/20
https://github.com/emarref/jwt/releases/tag/1.0.3
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