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PHPEMS Deserialization of Untrusted Data vulnerability

Moderate severity GitHub Reviewed Published Dec 10, 2023 to the GitHub Advisory Database • Updated Jan 11, 2024

Package

composer phpems/phpems (Composer)

Affected versions

>= 6.0.0, <= 6.1.3

Patched versions

None

Description

A vulnerability classified as critical was found in PHPEMS 6.x/7.0. Affected by this vulnerability is an unknown functionality in the library lib/session.cls.php of the component Session Data Handler. The manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-247357 was assigned to this vulnerability.

References

Published by the National Vulnerability Database Dec 10, 2023
Published to the GitHub Advisory Database Dec 10, 2023
Reviewed Jan 11, 2024
Last updated Jan 11, 2024

Severity

Moderate

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
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:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS score

0.769%
(82nd percentile)

Weaknesses

CVE ID

CVE-2023-6654

GHSA ID

GHSA-5rv2-vvmf-f7w8

Source code

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