Vulnerability Details : CVE-2011-0017
The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.
Vulnerability category: Input validation
Products affected by CVE-2011-0017
- cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.11:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.12:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.00:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.36:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.21:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.20:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.10:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.03:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.02:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.01:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.31:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.30:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.22:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.12:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.11:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:2.11:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:2.10:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.04:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.03:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.33:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.32:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.14:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.13:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.00:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:2.12:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.14:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.05:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.35:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.34:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.16:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.15:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.02:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:3.01:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:*
Threat overview for CVE-2011-0017
Top countries where our scanners detected CVE-2011-0017
Top open port discovered on systems with this issue
80
IPs affected by CVE-2011-0017 2,056
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-0017!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-0017
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-0017
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST |
CWE ids for CVE-2011-0017
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-0017
-
http://www.vupen.com/english/advisories/2011/0245
Webmail | OVH- OVHVendor Advisory
-
http://lists.exim.org/lurker/message/20110126.034702.4d69c278.en.html
[exim-announce] Exim 4.74 ReleasePatch
-
http://www.vupen.com/english/advisories/2011/0364
Webmail | OVH- OVH
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/65028
Exim open_log privilege escalation CVE-2011-0017 Vulnerability Report
-
http://www.vupen.com/english/advisories/2011/0464
Webmail | OVH- OVH
-
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
[security-announce] SUSE Security Summary Report: SUSE-SR:2011:004
-
http://www.debian.org/security/2011/dsa-2154
Debian -- Security Information -- DSA-2154-1 exim4
-
http://www.vupen.com/english/advisories/2011/0224
Webmail | OVH- OVHVendor Advisory
-
http://www.securityfocus.com/bid/46065
Exim 'log.c' Local Privilege Escalation Vulnerability
-
ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74
-
http://www.ubuntu.com/usn/USN-1060-1
USN-1060-1: Exim vulnerabilities | Ubuntu security notices
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