PT-2021-21250 · Orbiteam · Orbiteam Bscw Classic

Armin Stock · Published 2021-08-30 · Updated 2021-09-06 · CVE-2021-36359

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OrbiTeam BSCW Classic versions prior to 5.0.12 OrbiTeam BSCW Classic versions prior to 5.1.10 OrbiTeam BSCW Classic versions prior to 5.2.4 OrbiTeam BSCW Classic versions prior to 7.3.3 OrbiTeam BSCW Classic versions prior to 7.4.3

Description The issue allows authenticated remote code execution (RCE) via XML tag injection. This occurs because the reportlabplatypusparaparser.py module, reached via bscw.cgi with the op= editfolder.EditFolder parameter, calls eval on attacker-supplied Python code.

Recommendations For versions prior to 5.0.12, update to version 5.0.12 or later. For versions prior to 5.1.10, update to version 5.1.10 or later. For versions prior to 5.2.4, update to version 5.2.4 or later. For versions prior to 7.3.3, update to version 7.3.3 or later. For versions prior to 7.4.3, update to version 7.4.3 or later. As a temporary workaround, consider restricting access to the bscw.cgi endpoint with the op= editfolder.EditFolder parameter until a patch is applied.

Exploit

Fix

Weakness Enumeration

CWE-91

Related Identifiers

CVE-2021-36359

Affected Products

Orbiteam Bscw Classic

References · 10

• 🔥 http://packetstormsecurity.com/files/163988/BSCW-Server-XML-Injection.html · Exploit
• 🔥 http://seclists.org/fulldisclosure/2021/Aug/23 · Exploit
• https://bscw.de/en/company · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36359 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36359 · Security Note
• https://t.me/cvenotify/20327 · Telegram Post
• https://t.me/cibsecurity/27996 · Telegram Post
• https://t.me/cvenotify/20531 · Telegram Post
• https://t.me/defcon_news/84369 · Telegram Post
• https://t.me/cvenotify/20351 · Telegram Post