CVE-2015-9235

In jsonwebtoken node module before 4.2.2 it is possible for an attacker to bypass verification when a token digitally signed with an asymmetric key (RS/ES family) of algorithms but instead the attacker send a token digitally signed with a symmetric algorithm (HS* family).

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.timmclean.net/2015/02/25/jwt-alg-none.html	Exploit Third Party Advisory
https://nodesecurity.io/advisories/17	Third Party Advisory
https://github.com/auth0/node-jsonwebtoken/commit/1bb584bc382295eeb7ee8c4452a673a77a68b687	Patch Third Party Advisory
https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/	Broken Link Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:auth0:jsonwebtoken:*:*:*:*:*:node.js:*:*

Information

Published : 2018-05-29 13:29

Updated : 2019-10-09 16:15

NVD link : CVE-2015-9235

Mitre link : CVE-2015-9235

JSON object : View

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

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Products Affected

auth0

jsonwebtoken

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