Code Injection in SPIP - CVE-2020-28984
Published: November 23, 2020 / Updated: November 27, 2020
Vulnerability identifier: #VU48694
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2020-28984
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in "prive/formulaires/configurer_preferences.php" when processing data passed via couleur, display, display_navigation, display_outils, imessage, and spip_ecran parameters. A remote user can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
SPIP
spip (Debian package)
spip (Ubuntu package)
Ubuntu
spip (Debian package)
spip (Ubuntu package)
Ubuntu
How to mitigate CVE-2020-28984
Install updates from vendor's website.
SPIP - update to 3.2.8
spip (Debian package) - update to 3.2.4-1+deb10u3
spip (Ubuntu package) - addressed in versions 3.1.4-4~deb9u5build0.18.04.1, 3.2.7-1ubuntu0.1, 3.2.11-3+deb11u3build0.21.10.1
spip (Debian package) - update to 3.2.4-1+deb10u3
spip (Ubuntu package) - addressed in versions 3.1.4-4~deb9u5build0.18.04.1, 3.2.7-1ubuntu0.1, 3.2.11-3+deb11u3build0.21.10.1