PT-2021-22870 · Christie Digital · Christie Digital Dwu850-Gs

F1Re_W1Re · Published 2021-09-01 · Updated 2021-09-09 · CVE-2021-40350

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Christie Digital DWU850-GS version V06.46

Description The issue allows attackers to perform any desired action via a crafted query containing an unspecified Cookie header. Authentication bypass can be achieved by including an administrative cookie that the device does not validate.

Recommendations For Christie Digital DWU850-GS version V06.46, as a temporary workaround, consider restricting access to the webctrl.cgi.elf file until a patch is available. Avoid using administrative cookies in queries to the affected device until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-40350

Affected Products

Christie Digital Dwu850-Gs

References · 4

• 🔥 https://securityshards.wordpress.com/2021/08/31/cve-pending-christie-dwu850-gs-authentication-bypass · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-40350 · Security Note
• https://osv.dev/vulnerability/CVE-2021-40350 · Vendor Advisory
• https://t.me/cibsecurity/28178 · Telegram Post