Permissions, Privileges, and Access Controls in ZNC - CVE-2019-12816
Published: June 15, 2019 / Updated: July 28, 2020
Vulnerability identifier: #VU32011
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-12816
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ZNC
Affected software:
ZNC
ZNC
Detailed vulnerability description
The vulnerability allows a remote authenticated user to execute arbitrary code.
Modules.cpp in ZNC before 1.7.4-rc1 allows remote authenticated non-admin users to escalate privileges and execute arbitrary code by loading a module with a crafted name.
How to mitigate CVE-2019-12816
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.html
- https://github.com/znc/znc/commit/8de9e376ce531fe7f3c8b0aa4876d15b479b7311
- https://github.com/znc/znc/compare/be1b6bc...d1997d6
- https://lists.debian.org/debian-lts-announce/2019/06/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4O24TQOB73X57GACLZVMRVUK4UKHLE5G/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NHR6OD52FQAG5ZPZ42NJM2T765C3V2XC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEESIGRNFLZUWXZPDGXAZ7JZTHYBDJ7G/
- https://seclists.org/bugtraq/2019/Jun/23
- https://security.gentoo.org/glsa/201908-15
- https://usn.ubuntu.com/4044-1/