CVE-2021-30246

Published on: 04/07/2021 12:00:00 AM UTC

Last Modified on: 04/14/2021 04:09:00 PM UTC

CVE-2021-30246

Source: Mitre
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Certain versions of Jsrsasign from Jsrsasign Project contain the following vulnerability:

In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.

  • CVE-2021-30246 has been assigned by [email protected] to track the vulnerability - currently rated as - currently rated as CRITICAL severity.

CVSS3 Score: 9.1 - CRITICAL

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED HIGH HIGH NONE

CVSS2 Score: 6.4 - MEDIUM

Access
Vector ⓘ		 Access
Complexity		 Authentication
NETWORK LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
PARTIAL PARTIAL NONE

CVE References

Description Tags ⓘ Link
Release add non-ascii BMPString support · kjur/jsrsasign · GitHub github.com
text/html
 URL Logo MISC github.com/kjur/jsrsasign/releases/tag/10.1.13
jsrsasign - cryptography library in JavaScript kjur.github.io
text/html
 URL Logo MISC kjur.github.io/jsrsasign/
Leniency in parsing block type byte and padding bytes for PKCS#1 v1.5 signature verification · Issue #478 · kjur/jsrsasign · GitHub github.com
text/html
 URL Logo MISC github.com/kjur/jsrsasign/issues/478
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Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationJsrsasign ProjectJsrsasignAllAllAllAll
  • cpe:2.3:a:jsrsasign_project:jsrsasign:*:*:*:*:*:node.js:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-30246 : In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are… twitter.com/i/web/status/1… 2021-04-07 21:06:19
Twitter Icon @jsrsasign jsrsasign security advisory 2021.04.14 CVE-2021-30246 RSA signature validation vulnerability on maleable encoded me… twitter.com/i/web/status/1… 2021-04-13 16:28:57