ASA-202506-5 log generated external raw
[ASA-202506-5] konsole: arbitrary code execution |
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Arch Linux Security Advisory ASA-202506-5
=========================================
Severity: High
Date : 2025-06-11
CVE-ID : CVE-2025-49091
Package : konsole
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-2897
Summary
=======
The package konsole before version 25.04.2-1 is vulnerable to arbitrary
code execution.
Resolution
==========
Upgrade to 25.04.2-1.
# pacman -Syu "konsole>=25.04.2-1"
The problem has been fixed upstream in version 25.04.2.
Workaround
==========
None.
Description
===========
Konsole supports loading URLs from the scheme handlers such as
telnet://URL. This can be executed regardless of whether the telnet
binary is available.
In this mode konsole had a path where if telnet was not available it
would fall back to using bash for the given arguments provided; which
is the URL provided. This allows an attacker to execute arbitrary code.
Browsers typically provide a prompt when a user opens an external
scheme handler which would look suspicious, requiring user interaction
to be exploitable.
Impact
======
A remote attacker can trick a user into opening a specially crafted URL
that exploits Konsole’s scheme handler fallback mechanism, leading to
arbitrary code execution.
References
==========
https://kde.org/info/security/advisory-20250609-1.txt
https://proofnet.de/publikationen/konsole_rce.html
https://nvd.nist.gov/vuln/detail/CVE-2025-49091
https://www.openwall.com/lists/oss-security/2025/06/10/5
https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327b5642a2b75
https://security.archlinux.org/CVE-2025-49091
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