Vulnerability Details : CVE-2012-3440
A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.
Threat overview for CVE-2012-3440
Top countries where our scanners detected CVE-2012-3440
Top open port discovered on systems with this issue
53
IPs affected by CVE-2012-3440 16,885
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2012-3440
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-3440
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.6
|
MEDIUM | AV:L/AC:H/Au:N/C:N/I:C/A:C |
1.9
|
9.2
|
NIST |
CWE ids for CVE-2012-3440
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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-2012-3440
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http://www.securityfocus.com/bid/54868
Todd Miller Sudo Insecure Temporary File Creation Vulnerability
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https://bugzilla.redhat.com/show_bug.cgi?id=844442
844442 – (CVE-2012-3440) CVE-2012-3440 sudo: insecure temporary file use in RPM %postun scriptExploit
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http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Oracle VM Server for x86 Bulletin - July 2016
Products affected by CVE-2012-3440
- cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
- cpe:2.3:a:todd_miller:sudo:1.7.2:*:*:*:*:*:*:*