Man-in-the-Middle (MitM) attack in libzapojit - CVE-2021-39360
Published: September 14, 2022
Vulnerability identifier: #VU67361
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-39360
CWE-ID: CWE-300
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Gnome Development Team
Affected software:
libzapojit
libzapojit
Detailed vulnerability description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates. A remote attacker can perform Man-in-the-Middle (MitM) attack.
How to mitigate CVE-2021-39360
Install updates from vendor's website.
Sources
- https://blogs.gnome.org/mcatanzaro/2021/05/25/reminder-soupsessionsync-and-soupsessionasync-default-to-no-tls-certificate-verification/
- https://gitlab.gnome.org/GNOME/libzapojit/-/issues/4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNSIMQXP6VQWJXI7VW7ZCLCS4NWW465T/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IDXCHOCVP3VSAKDBQSLER2DQHFIOUHAT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UG7TUICJM4QJHI4QJ2RHOSQE2QWD3KO3/