CVE-2006-1863

Linux Kernel < 2.6.17 - Directory Traversal via CIFS Chroot Escape

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-1863. PoCs published by Marcel Holtmann.

AI-analyzed exploit summary This is a writeup demonstrating a chroot bypass vulnerability in the Linux Kernel when using SMB-mounted filesystems (cifs). The attacker can escape the chroot restriction by navigating to the parent directory using 'cd ..\'.

Description

Directory traversal vulnerability in CIFS in Linux 2.6.16 and earlier allows local users to escape chroot restrictions for an SMB-mounted filesystem via "..\\" sequences, a similar vulnerability to CVE-2006-1864.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Marcel Holtmann · textlocallinux
https://www.exploit-db.com/exploits/27769

This is a writeup demonstrating a chroot bypass vulnerability in the Linux Kernel when using SMB-mounted filesystems (cifs). The attacker can escape the chroot restriction by navigating to the parent directory using 'cd ..\'.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Linux Kernel (versions affected by CVE-2006-1863)
Auth required
Prerequisites: Local access to a system with a chroot environment on an SMB-mounted filesystem
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (19)

Core 19
Core References
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/2554
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/17742
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10383
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/1542
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2006:151
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21614
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2006-05-31.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1103
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHBA-2007-0304.html
Vendor Advisory vendor-advisory x_refsource_trustix
http://www.trustix.org/errata/2006/0024
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20398
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/26141
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/19868
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/25068
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/20914

Scores

EPSS 0.0102
EPSS Percentile 58.9%

Details

Status published
Products (1)
linux/linux_kernel < 2.6.17
Published Apr 25, 2006
Tracked Since Feb 18, 2026