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Insufficient randomness in authentication

Critical
SamWhited published GHSA-j669-f4j2-j948 Jan 4, 2023

Package

gomod mellium.im/sasl (Go)

Affected versions

v0.3.0

Patched versions

v0.3.1

Description

Impact

Authentication failure or potential chain-able exploit.

Lack of nonce will normally cause authentication to fail. If a server also had a bug in which it was not checking the length of the nonce, insufficient randomness could also be used. This likely would still not result in an exploit.

Patches

Workarounds

None

References

Severity

Critical

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
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVE ID

CVE-2022-48195

Weaknesses

Credits