CVE-2021-29443

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
Description
jose is an npm library providing a number of cryptographic operations. In vulnerable versions AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. A possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || >=3.11.4`. Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4. Thanks to Jason from Microsoft Vulnerability Research (MSVR) for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.
Overview
  • CVE ID
  • CVE-2021-29443
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-16T18:15:13
  • Last Modified Date
  • 2021-04-23T20:38:27
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* 1 OR 1.0.0 1.28.1
cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* 1 OR 2.0.0 2.0.5
cpe:2.3:a:jose_project:jose:*:*:*:*:*:node.js:*:* 1 OR 3.0.0 3.11.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch Patch Third Party Advisory
https://www.npmjs.com/package/jose Third Party Advisory
History
Created Old Value New Value Data Type Notes
2022-05-10 07:14:20 Added to TrackCVE
2022-12-06 02:03:46 2021-04-16T18:15Z 2021-04-16T18:15:13 CVE Published Date updated
2022-12-06 02:03:46 2021-04-23T20:38:27 CVE Modified Date updated
2022-12-06 02:03:46 Analyzed Vulnerability Status updated