Home/CVE/An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation
CVE

CVE-2020-14967

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

CRITICAL · CVSS 9.8 EPSS 0.00339
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

2
jsrsasign project jsrsasign< 8.0.18
netapp max dataall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm jsrsasign CRITICAL fixed in 8.0.18
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/439github.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Jun 2020 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/kjur/jsrsasign/releases/tag/8.0.17Release NotesThird Party Advisory
https://github.com/kjur/jsrsasign/releases/tag/8.0.18Release NotesThird Party Advisory
https://kjur.github.io/jsrsasign/Release NotesThird Party Advisory
https://security.netapp.com/advisory/ntap-20200724-0001/Third Party Advisory
https://www.npmjs.com/package/jsrsasignProductThird Party Advisory
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