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…
High
Known exploited
- Severity
- 7.8 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 17.96%
- Chance of exploitation in the next 30 days. Higher than 97.19% of scored vulnerabilities.
- Known exploited
- Yes
- In CISA's catalog since Mar 25, 2022
- Weakness
- —
- Not classified
- Fix
- None yet
- No fixed version published
Exploited in the wild. Exim Privilege Escalation Vulnerability (Exim Exim). Required action: Apply updates per vendor instructions. Due for U.S. federal agencies by Apr 15, 2022.
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.
How to fix
No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.
Severity breakdown
CVSS 3.1 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
References
Advisories
- lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html
- secunia.com/advisories/42576
- secunia.com/advisories/42930
- secunia.com/advisories/43128
- secunia.com/advisories/43243
- debian.org/security/2010/dsa-2131
- debian.org/security/2011/dsa-2154
- exim.org/lurker/message/20101207.215955.bb32d4f2.en.html
- kb.cert.org/vuls/id/758489
- metasploit.com/modules/exploit/unix/smtp/exim4_string_format
- securityfocus.com/archive/1/515172/100/0/threaded
- securityfocus.com/bid/45341
- securitytracker.com/id
- theregister.co.uk/2010/12/11/exim_code_execution_peril
- ubuntu.com/usn/USN-1060-1
- vupen.com/english/advisories/2010/3171
- vupen.com/english/advisories/2010/3204
- vupen.com/english/advisories/2011/0135
- vupen.com/english/advisories/2011/0245
- vupen.com/english/advisories/2011/0364
Fixes and patches
Write-ups
Other links
Timeline
- Published
- Added to CISA's Known Exploited Vulnerabilities catalog
- Remediation due for U.S. federal agencies
- Last updated by the source
- Latest EPSS score
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