CVE-2008-2936

Postfix 2.6-20080814 - 'symlink' Local Privilege Escalation

Severity Score

6.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.

Postfix antes de 2.3.15, 2.4 anterior a 2.4.8, 2.5 anterior a 2.5.4 y 2.6 antes de 2.6-20080814, cuando el sistema operativo admite enlaces duros (hard links) a enlaces simbólicos, permite a usuarios locales añadir mensajes de correo a un archivo al que apunta un enlace simbólico propiedad de root, creando un enlace duro a este enlace simbólico y enviando un mensaje después. NOTA: esto puede ser utilizado para obtener privilegios si hay un enlace simbólico a un script init.

*Credits: N/A

CVSS Scores

NISTv2 6.2

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2008-06-30 CVE Reserved
2008-08-14 CVE Published
2023-10-08 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (35)

URL	Tag	Source
ftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY	X_refsource_confirm
ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY	X_refsource_confirm
ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY	X_refsource_confirm
ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY	X_refsource_confirm
http://article.gmane.org/gmane.mail.postfix.announce/110	Mailing List
http://secunia.com/advisories/31469	Third Party Advisory
http://secunia.com/advisories/31474	Third Party Advisory
http://secunia.com/advisories/31477	Third Party Advisory
http://secunia.com/advisories/31530	Third Party Advisory
http://secunia.com/advisories/32231	Third Party Advisory
http://securityreason.com/securityalert/4160	Third Party Advisory
http://wiki.rpath.com/Advisories:rPSA-2008-0259	X_refsource_confirm
http://www.kb.cert.org/vuls/id/938323	Third Party Advisory
http://www.securityfocus.com/archive/1/495474/100/0/threaded	Mailing List
http://www.securityfocus.com/archive/1/495632/100/0/threaded	Mailing List
http://www.securityfocus.com/archive/1/495882/100/0/threaded	Mailing List
http://www.securitytracker.com/id?1020700	Vdb Entry
http://www.vupen.com/english/advisories/2008/2385	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/44460	Vdb Entry
https://issues.rpath.com/browse/RPL-2689	X_refsource_confirm
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10033	Signature

URL	Date	SRC
https://www.exploit-db.com/exploits/6337	2024-08-07

URL	Date	SRC
http://www.securityfocus.com/bid/30691	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html	2023-11-07
http://secunia.com/advisories/31485	2023-11-07
http://secunia.com/advisories/31500	2023-11-07
http://security.gentoo.org/glsa/glsa-200808-12.xml	2023-11-07
http://www.debian.org/security/2008/dsa-1629	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2008:171	2023-11-07
http://www.redhat.com/support/errata/RHSA-2008-0839.html	2023-11-07
https://usn.ubuntu.com/636-1	2023-11-07
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00271.html	2023-11-07
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00287.html	2023-11-07
https://access.redhat.com/security/cve/CVE-2008-2936	2008-08-14
https://bugzilla.redhat.com/show_bug.cgi?id=456314	2008-08-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.0 Search vendor "Postfix" for product "Postfix" and version "2.3.0"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.1 Search vendor "Postfix" for product "Postfix" and version "2.3.1"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.2 Search vendor "Postfix" for product "Postfix" and version "2.3.2"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.3 Search vendor "Postfix" for product "Postfix" and version "2.3.3"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.4 Search vendor "Postfix" for product "Postfix" and version "2.3.4"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.5 Search vendor "Postfix" for product "Postfix" and version "2.3.5"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.6 Search vendor "Postfix" for product "Postfix" and version "2.3.6"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.7 Search vendor "Postfix" for product "Postfix" and version "2.3.7"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.8 Search vendor "Postfix" for product "Postfix" and version "2.3.8"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.9 Search vendor "Postfix" for product "Postfix" and version "2.3.9"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.10 Search vendor "Postfix" for product "Postfix" and version "2.3.10"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.11 Search vendor "Postfix" for product "Postfix" and version "2.3.11"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.12 Search vendor "Postfix" for product "Postfix" and version "2.3.12"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.13 Search vendor "Postfix" for product "Postfix" and version "2.3.13"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.3.14 Search vendor "Postfix" for product "Postfix" and version "2.3.14"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.0 Search vendor "Postfix" for product "Postfix" and version "2.4.0"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.1 Search vendor "Postfix" for product "Postfix" and version "2.4.1"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.2 Search vendor "Postfix" for product "Postfix" and version "2.4.2"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.3 Search vendor "Postfix" for product "Postfix" and version "2.4.3"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.4 Search vendor "Postfix" for product "Postfix" and version "2.4.4"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.5 Search vendor "Postfix" for product "Postfix" and version "2.4.5"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.6 Search vendor "Postfix" for product "Postfix" and version "2.4.6"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.4.7 Search vendor "Postfix" for product "Postfix" and version "2.4.7"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.5.0 Search vendor "Postfix" for product "Postfix" and version "2.5.0"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.5.1 Search vendor "Postfix" for product "Postfix" and version "2.5.1"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.5.2 Search vendor "Postfix" for product "Postfix" and version "2.5.2"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.5.3 Search vendor "Postfix" for product "Postfix" and version "2.5.3"		-		Affected
Postfix Search vendor "Postfix"		Postfix Search vendor "Postfix" for product "Postfix"				2.6.0 Search vendor "Postfix" for product "Postfix" and version "2.6.0"		-		Affected