Skip to content

Cmder emits control characters into the title which can execute commands.

Critical
MartiUK published GHSA-q8jh-m5px-rcxf Jul 27, 2023

Package

cmder

Affected versions

<= 1.3.21

Patched versions

>= 1.3.24

Description

Impact

Despite the fix for GHSA-vm56-hh5p-448v, cmder can still emit control characters to the title which can execute commands.

Patches

Cmder will use an updated version of ConEmu that is patched.

Workarounds

Ideally you should upgrade but you can change ConEmu in the vendor/sources.json file to the latest version and run the scripts/build.ps1 file. That should download and unpack the latest version.

References

https://github.com/orgs/cmderdev/discussions/2864
Maximus5/ConEmu#2536

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-2023-39150

Weaknesses

Credits