Insecure DLL loading in CPython - CVE-2020-8315
Published: February 3, 2020
Vulnerability identifier: #VU24843
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8315
CWE-ID: CWE-427
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to direct calls to "LoadLibraryW()" in "getpathp.c" without any "LOAD_LIBRARY_SEARCH*" flags. A remote attacker can use a malicious copy of api-ms-win-core-path-l1-1-0.dll, which being loaded and used instead of the system's copy and execute arbitrary code on victim's system.
Affected software
CPython
python3 (Alpine package)
python3 (Alpine package)
How to mitigate CVE-2020-8315
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
python3 (Alpine package) - update to 3.7.7-r1