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CVE-2010-4345

Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.

Published:Dec 7, 2010

Last Modified:Apr 21, 2026

EPS:Dec 14, 2010

EPSS Score:0.06001

CVSS Score:7.8

CISA Notification

Description

Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.

Required Action:

Apply updates per vendor instructions.

Notes:

No extra notes provided.

Due Date

Apr 15, 2022

1610 days ago

Alert Date

Mar 25, 2022

1631 days ago

Affected Products

Vendor

Product

Action

Vendor

Canonical

Product

Ubuntu Linux

Canonical

Ubuntu Linux

Vendor

Debian

Product

Debian Linux

Debian

Debian Linux

Vendor

Exim

Product

Exim

Exim

Exim

Vendor

Opensuse

Product

Opensuse

Opensuse

Opensuse

Vendor

Redhat

Product

Enterprise Linux

Redhat

Enterprise Linux

Exploits

https://www.exploit-db.com/exploits/16925

Common Weakness Enumeration

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-108 Command Line Execution through SQL Injection

CAPEC-136 LDAP Injection

CAPEC-15 Command Delimiters

CAPEC-183 IMAP/SMTP Command Injection

CAPEC-248 Command Injection

CAPEC-40 Manipulating Writeable Terminal Devices

CAPEC-43 Exploiting Multiple Input Interpretation Layers

CAPEC-6 Argument Injection

CAPEC-75 Manipulating Writeable Configuration Files

CAPEC-76 Manipulating Web Input to File System Calls

CAPEC-88 OS Command Injection

Related CVEs

CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…

CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…

CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …

CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…

CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…

CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…

CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…

CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…

CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…

CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

References

http://bugs.exim.org/show_bug.cgi?id=1044

http://lists.exim.org/lurker/message/20101209.172233.abcba158.en.html

http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html

http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html

http://openwall.com/lists/oss-security/2010/12/10/1

http://secunia.com/advisories/42576

http://secunia.com/advisories/42930

http://secunia.com/advisories/43128

http://secunia.com/advisories/43243

http://www.cpanel.net/2010/12/critical-exim-security-update.html

http://www.debian.org/security/2010/dsa-2131

http://www.debian.org/security/2011/dsa-2154

http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html

http://www.kb.cert.org/vuls/id/758489

http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format

http://www.openwall.com/lists/oss-security/2021/05/04/7

http://www.redhat.com/support/errata/RHSA-2011-0153.html

http://www.securityfocus.com/archive/1/515172/100/0/threaded

http://www.securityfocus.com/bid/45341

http://www.securitytracker.com/id?1024859

http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/

http://www.ubuntu.com/usn/USN-1060-1

http://www.vupen.com/english/advisories/2010/3171

http://www.vupen.com/english/advisories/2010/3204

http://www.vupen.com/english/advisories/2011/0135

http://www.vupen.com/english/advisories/2011/0245

http://www.vupen.com/english/advisories/2011/0364

https://bugzilla.redhat.com/show_bug.cgi?id=662012

http://bugs.exim.org/show_bug.cgi?id=1044

http://lists.exim.org/lurker/message/20101209.172233.abcba158.en.html

http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html

http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html

http://openwall.com/lists/oss-security/2010/12/10/1

http://secunia.com/advisories/42576

http://secunia.com/advisories/42930

http://secunia.com/advisories/43128

http://secunia.com/advisories/43243

http://www.cpanel.net/2010/12/critical-exim-security-update.html

http://www.debian.org/security/2010/dsa-2131

http://www.debian.org/security/2011/dsa-2154

http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html

http://www.kb.cert.org/vuls/id/758489

http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format

http://www.openwall.com/lists/oss-security/2021/05/04/7

http://www.redhat.com/support/errata/RHSA-2011-0153.html

http://www.securityfocus.com/archive/1/515172/100/0/threaded

http://www.securityfocus.com/bid/45341

http://www.securitytracker.com/id?1024859

http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/

http://www.ubuntu.com/usn/USN-1060-1

http://www.vupen.com/english/advisories/2010/3171

http://www.vupen.com/english/advisories/2010/3204

http://www.vupen.com/english/advisories/2011/0135

http://www.vupen.com/english/advisories/2011/0245

http://www.vupen.com/english/advisories/2011/0364

https://bugzilla.redhat.com/show_bug.cgi?id=662012

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4345

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High