Out-of-bounds read in ProFTPD - CVE-2020-9272
Published: February 25, 2020 / Updated: September 7, 2020
Vulnerability identifier: #VU25596
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-9272
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in mod_cap within bundled libpcab library code (via the cap_text.c cap_to_text function). A remote attacker can send specially crafted traffic to the server, trigger an out-of-bounds read error and read contents of memory on the system.
Affected software
ProFTPD
QNAP QTS
SIMATIC NET CP 1545-1
SIMATIC NET CP 1543-1
Gentoo Linux
SUSE Linux
Opensuse
QNAP QTS
SIMATIC NET CP 1545-1
SIMATIC NET CP 1543-1
Gentoo Linux
SUSE Linux
Opensuse
How to mitigate CVE-2020-9272
Install updates from vendor's website.
ProFTPD - addressed in versions 1.3.6c, 1.3.7 rc3
QNAP QTS - addressed in versions 4.2.6 20200821, 4.3.3.1386 20200821, 4.3.6.1411 20200825, 4.4.3.1400 20200817
SIMATIC NET CP 1543-1 - update to 3.0
QNAP QTS - addressed in versions 4.2.6 20200821, 4.3.3.1386 20200821, 4.3.6.1411 20200825, 4.4.3.1400 20200817
SIMATIC NET CP 1543-1 - update to 3.0