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Vulnerability record · CVE-2012-2104 · published 26 August 2012

CVE-2012-2104: Munin-monitoring munin improper input validation vulnerability

Munin Monitoring · Munin

cgi-bin/munin-cgi-graph in Munin 2.x writes data to a log file without sanitizing non-printable characters, which might allow user-assisted remote attackers to inject terminal emulator escape sequences and execute arbitrary commands or delete arbitrary files via a crafted HTTP request.

6.8 CVSS 2.0 Medium EPSS 5.1% · top 8.0% CWE-20 · Improper input validation
6.8CVSS 2.0 base score
5.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

cgi-bin/munin-cgi-graph in Munin 2.x writes data to a log file without sanitizing non-printable characters, which might allow user-assisted remote attackers to inject terminal emulator escape sequences and execute arbitrary commands or delete arbitrary files via a crafted HTTP request.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668666
http://www.openwall.com/lists/oss-security/2012/04/16/5
http://www.openwall.com/lists/oss-security/2012/04/16/6
http://www.securityfocus.com/bid/53032 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/74885
https://support.citrix.com/article/CTX236992
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668666
http://www.openwall.com/lists/oss-security/2012/04/16/5
http://www.openwall.com/lists/oss-security/2012/04/16/6
http://www.securityfocus.com/bid/53032 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/74885
https://support.citrix.com/article/CTX236992

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2012-3513Munin-monitoring munin permissions and access controls vulnerabilitymunin-cgi-graph in Munin before 2.0.6, when running as a CGI module under Apache, allows remote attackers to load new configurations and create files…EPSS 2.4%7.2CVE-2012-3512Munin-monitoring munin permissions and access controls vulnerabilityMunin before 2.0.6 stores plugin state files that run as root in the same group-writable directory as non-root plugins, which allows local users to e…EPSS 0.59%5.5CVE-2017-6188Munin-monitoring munin improper input validation vulnerabilityMunin before 2.999.6 has a local file write vulnerability when CGI graphs are enabled. Setting multiple upper_limit GET parameters allows overwriting…EPSS 0.42%5.0CVE-2013-6048Munin-monitoring munin improper input validation vulnerabilityThe get_group_tree function in lib/Munin/Master/HTMLConfig.pm in Munin before 2.0.18 allows remote nodes to cause a denial of service (infinite loop …EPSS 2.5%5.0CVE-2012-4678Munin-monitoring munin vulnerabilitymunin-cgi-graph for Munin 2.0 rc4 does not delete temporary files, which allows remote attackers to cause a denial of service (disk consumption) via …EPSS 2.2%5.0CVE-2012-2147Munin-monitoring munin vulnerabilitymunin-cgi-graph in Munin 2.0 rc4 allows remote attackers to cause a denial of service (disk or memory consumption) via many image requests with large…EPSS 1.9%4.3CVE-2013-6359Munin-monitoring munin improper input validation vulnerabilityMunin::Master::Node in Munin before 2.0.18 allows remote attackers to cause a denial of service (abort data collection for node) via a plugin that us…EPSS 1.8%1.2CVE-2012-2103Munin-monitoring munin link following vulnerabilityThe qmailscan plugin for Munin 1.4.5 allows local users to overwrite arbitrary files via a symlink attack on temporary files with predictable names.EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2012-2104), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.