critical
9.8
CWE
20 77
Advisory Published
CVE Published
Updated

CVE-2015-20107: Input Validation

First published: Sun Aug 02 2015(Updated: )

A command injection vulnerability was found in Python 2.x and 3.x, specifically within the mailcap module. Mailcap core-module is based on the format documented in RFC 1524. The “findmatch()” function does not sanitise the second argument (filename). As a result, the legitimate command (that is used for opening the specified mime type) is concatenated with an arbitrary command, injected by an attacker.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/python3<0:3.6.8-47.el8_6
0:3.6.8-47.el8_6
redhat/python3.9<0:3.9.14-1.el9
0:3.9.14-1.el9
redhat/rh-python38-python<0:3.8.14-1.el7
0:3.8.14-1.el7
Python Python>=3.7.0<=3.7.15
Python Python>=3.8.0<=3.8.15
Python Python>=3.9.0<=3.9.15
Python Python>=3.10.0<3.10.8
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Active Iq Unified Manager Windows
NetApp ONTAP Select Deploy administration utility
Netapp Snapcenter
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Fedoraproject Fedora=37
debian/python2.7<=2.7.18-8+deb11u1
debian/python3.9<=3.9.2-1
IBM Cloud Pak for Security<=1.10.0.0 - 1.10.11.0
IBM QRadar Suite Software<=1.10.12.0 - 1.10.16.0

Remedy

https://python-security.readthedocs.io/vuln/mailcap-shell-injection.html

Remedy

Users should upgrade to the latest version. If this is not possible and the affected version of the Python mailcap module has to be used then applications that use mailcap module should verify user input before passing it to the mailcap module, and the returned command before executing it.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2015-20107?

    CVE-2015-20107 is a command injection vulnerability found in the Python mailcap module.

  • How does CVE-2015-20107 affect Python?

    CVE-2015-20107 affects Python versions up to 3.10.8.

  • What is the severity of CVE-2015-20107?

    CVE-2015-20107 has a severity rating of high.

  • How can CVE-2015-20107 be exploited?

    CVE-2015-20107 can be exploited by injecting shell commands into applications that call mailcap.findmatch with untrusted input.

  • What is the remedy for CVE-2015-20107?

    The recommended remedy for CVE-2015-20107 is to update to the fixed versions of Python mentioned in the references.

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