PT-2021-3232 · Invision · Invision Community

Egix · Published 2021-06-01 · Updated 2021-06-16 · CVE-2021-32924

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Invision Community (aka IPS Community Suite) versions prior to 4.6.0

Description The issue is related to the IPScmsmodulesfrontpages builder::previewBlock method interacting unsafely with the IPS Theme::runProcessFunction method, allowing for eval-based PHP code injection by a moderator. This is due to incorrect code generation management in the IPS Community Suite software. Exploitation of the issue may allow a remote attacker to execute arbitrary PHP code.

Recommendations For versions prior to 4.6.0, update to version 4.6.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the IPScmsmodulesfrontpages builder::previewBlock method and the IPS Theme::runProcessFunction method to minimize the risk of exploitation.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-02940

CVE-2021-32924

Affected Products

Invision Community

References · 12

• 🔥 https://hackerone.com/reports/1092574 · Exploit
• 🔥 http://packetstormsecurity.com/files/162868/IPS-Community-Suite-4.5.4.2-PHP-Code-Injection.html · Exploit
• 🔥 http://seclists.org/fulldisclosure/2021/May/80 · Exploit
• https://invisioncommunity.com/features/security · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32924 · Security Note
• https://osv.dev/vulnerability/CVE-2021-32924 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02940 · Security Note
• https://t.me/cvenotify/15350 · Telegram Post
• http://karmainsecurity.com/KIS-2021-04 · Note
• https://seclists.org/fulldisclosure/2021/May/80 · Note
• https://t.me/cvenotify/16452 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021060104 · Note