CVE-2004-2073

Linux-VServer 1.24 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-2073. PoCs published by Markus Mueller.

AI-analyzed exploit summary This exploit leverages a chroot-again vulnerability in VServer to escape the chrooted environment by manipulating directory permissions and re-chrooting. It creates a directory, changes into it, and then iteratively traverses up the directory tree while modifying permissions to eventually break out of the chroot jail.

Description

Linux-VServer 1.24 allows local users with root privileges on a virtual server to gain access to the filesystem outside the virtual server via a modified chroot-again exploit using the chmod command.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Markus Mueller · clocallinux
https://www.exploit-db.com/exploits/23658

This exploit leverages a chroot-again vulnerability in VServer to escape the chrooted environment by manipulating directory permissions and re-chrooting. It creates a directory, changes into it, and then iteratively traverses up the directory tree while modifying permissions to eventually break out of the chroot jail.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: VServer 1.24 with Linux kernel 2.4.24
Auth required
Prerequisites: Root access within the VServer chroot environment · VServer with chmod 000 /vservers configuration
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Exploit, Vendor Advisory mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/353003
Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/9596
Patch, Vendor Advisory x_refsource_confirm
http://www.linux-vserver.org/index.php?page=ChangeLog
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/10816
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/15073
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/3875

Scores

EPSS 0.0306
EPSS Percentile 85.9%

Details

Status published
Published Feb 06, 2004
Tracked Since Feb 18, 2026