Vulnerability Report

CVE-2000-1134

Title: Here-document symlink handling allows overwriting other users' files

Other

Proof Of Concept

PoC Available for CVE-2000-1134

CWE Category NVD-CWE-noinfo
Published Date Jan 09, 2001
Modified Date Jun 16, 2026
Exploit Status Available
Score 7.2 CVSS v2.0
Exploit Probability (EPSS)
1.42%

Vulnerability Summary

CVE-2000-1134: Multiple shell programs on various Unix systems, including (1) tcsh, (2) csh, (3) sh, and (4) bash, follow symlinks when processing << redirects (aka here-documents or in-here documents), which allows local users to overwrite files of other users via a symlink attack.

Impacted Vendors

I
immunix 1

Reference Links

ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:76.tcsh-csh.asc ftp://patches.sgi.com/support/free/security/advisories/20011103-02-P http://archives.neohapsis.com/archives/bugtraq/2000-10/0418.html http://archives.neohapsis.com/archives/tru64/2002-q1/0009.html http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000350 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000354 http://marc.info/?l=bugtraq&m=97561816504170&w=2 http://www.calderasystems.com/support/security/advisories/CSSA-2000-042.0.txt http://www.calderasystems.com/support/security/advisories/CSSA-2000-043.0.txt http://www.debian.org/security/2000/20001111a http://www.kb.cert.org/vuls/id/10277 http://www.linux-mandrake.com/en/security/MDKSA-2000-069.php3 http://www.linux-mandrake.com/en/security/MDKSA-2000-075.php3 http://www.redhat.com/support/errata/RHSA-2000-117.html http://www.redhat.com/support/errata/RHSA-2000-121.html http://www.securityfocus.com/archive/1/146657 http://www.securityfocus.com/bid/1926 http://www.securityfocus.com/bid/2006 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4047 ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:76.tcsh-csh.asc ftp://patches.sgi.com/support/free/security/advisories/20011103-02-P http://archives.neohapsis.com/archives/bugtraq/2000-10/0418.html http://archives.neohapsis.com/archives/tru64/2002-q1/0009.html http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000350 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000354 http://marc.info/?l=bugtraq&m=97561816504170&w=2 http://www.calderasystems.com/support/security/advisories/CSSA-2000-042.0.txt http://www.calderasystems.com/support/security/advisories/CSSA-2000-043.0.txt http://www.debian.org/security/2000/20001111a http://www.kb.cert.org/vuls/id/10277 http://www.linux-mandrake.com/en/security/MDKSA-2000-069.php3 http://www.linux-mandrake.com/en/security/MDKSA-2000-075.php3 http://www.redhat.com/support/errata/RHSA-2000-117.html http://www.redhat.com/support/errata/RHSA-2000-121.html http://www.securityfocus.com/archive/1/146657 http://www.securityfocus.com/bid/1926 http://www.securityfocus.com/bid/2006 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4047
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.2
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2000-1134 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/217
View Code
Exploit-DB https://www.exploit-db.com/exploits/20436
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected Stack

No specific products linked.