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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Exim | Exim | * | 4.72 (including) |
| Red Hat Enterprise Linux 4 | RedHat | exim-0:4.43-1.RHEL4.5.el4_8.3 | * |
| Red Hat Enterprise Linux 5 | RedHat | exim-0:4.63-5.el5_6.2 | * |
| Exim4 | Ubuntu | dapper | * |
| Exim4 | Ubuntu | hardy | * |
| Exim4 | Ubuntu | karmic | * |
| Exim4 | Ubuntu | lucid | * |
| Exim4 | Ubuntu | maverick | * |
| Exim4 | Ubuntu | upstream | * |
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