Improper access control in Debian Linux - CVE-2016-6255
Published: March 7, 2017 / Updated: August 9, 2020
Vulnerability identifier: #VU39573
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-6255
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to manipulate data.
Portable UPnP SDK (aka libupnp) before 1.6.21 allows remote attackers to write to arbitrary files in the webroot via a POST request without a registered handler.
Affected software
Debian Linux
Gentoo Linux
Fedora
libupnp
Gentoo Linux
Fedora
libupnp
How to mitigate CVE-2016-6255
Install update from vendor's website.
libupnp - addressed in versions 1.6.21-1.fc24, 1.6.21-1.fc25, 1.6.21-1.fc26
Links to Public Exploits and PoC-codes
External References
- http://www.debian.org/security/2016/dsa-3736
- http://www.openwall.com/lists/oss-security/2016/07/18/13
- http://www.openwall.com/lists/oss-security/2016/07/20/5
- http://www.securityfocus.com/bid/92050
- https://github.com/mjg59/pupnp-code/commit/be0a01bdb83395d9f3a5ea09c1308a4f1a972cbd
- https://security.gentoo.org/glsa/201701-52
- https://sourceforge.net/p/pupnp/code/ci/master/tree/ChangeLog
- https://twitter.com/mjg59/status/755062278513319936
- https://www.exploit-db.com/exploits/40589/
- https://www.tenable.com/security/research/tra-2017-10