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.
Published 2011-02-02 01:00:06
Updated 2017-08-17 01:33:23
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Input validation

Products affected by CVE-2011-0017

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. Powered by 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

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