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2024.01.16 CVE-2024-21484 Marvin attack of RSA and RSAOAEP decryption

High
kjur published GHSA-rh63-9qcf-83gf Jan 17, 2024

Package

npm jsrsasign (npm)

Affected versions

< 11.0.0

Patched versions

11.0.0

Description

Impact

RSA PKCS#1.5 or RSAOAEP ciphertexts may be decrypted by this Marvin attack vulnerability.

Patches

update to jsrsasign 11.0.0.

Workarounds

Find and replace RSA and RSAOAEP decryption with other crypto library.

References

https://people.redhat.com/~hkario/marvin/
#598
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6070732
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21484

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L

CVE ID

CVE-2024-21484

Weaknesses

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. Learn more on MITRE.

Credits