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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
http://www.securityfocus.com/bid/95847
https://github.com/emarref/jwt/pull/20	Issue Tracking Patch Third Party Advisory
https://github.com/emarref/jwt/releases/tag/1.0.3	Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/95847
https://github.com/emarref/jwt/pull/20	Issue Tracking Patch Third Party Advisory
https://github.com/emarref/jwt/releases/tag/1.0.3	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:emarref:jwt:*:*:*:*:*:*:*:*

History

18 Nov 2025, 13:54

Type	Values Removed	Values Added
CPE	cpe:2.3:a:jwt_project:jwt::::::::	cpe:2.3:a:emarref:jwt::::::::
First Time		Emarref jwt Emarref

Information

Published : 2017-01-23 21:59

Updated : 2025-11-18 13:54

NVD link : CVE-2016-7037

Mitre link : CVE-2016-7037

CVE.ORG link : CVE-2016-7037

JSON object : View

Products Affected

emarref

jwt

CWE

CWE-361

7PK - Time and State

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