PT-2023-2485 · Unknown · Papercut Ng

Chudypb + 1 · Published 2023-03-14 · Updated 2025-12-26 · CVE-2023-27351

Positive Technologies · (AI Summary)

CVSS v2.0

8.5

High

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

Name of the Vulnerable Software and Affected Versions PaperCut NG version 22.0.5 (Build 63914)

Description This issue allows remote attackers to bypass authentication on affected installations. The flaw exists within the SecurityRequestFilter class due to improper implementation of the authentication algorithm. An attacker can leverage this to bypass authentication on the system.

Recommendations For PaperCut NG version 22.0.5 (Build 63914), consider disabling the SecurityRequestFilter class as a temporary workaround until a patch is available. Restrict access to sensitive areas of the system to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Improper Authentication

Weakness Enumeration

CWE-284

CWE-287

Related Identifiers

BDU:2023-02276

CVE-2023-27351

ZDI-23-232

Affected Products

Papercut Ng

References · 20

• https://zerodayinitiative.com/advisories/ZDI-23-232 · Security Note
• https://osv.dev/vulnerability/CVE-2023-27351 · Vendor Advisory
• https://papercut.com/kb/Main/PO-1216-and-PO-1219 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02276 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-27351 · Security Note
• https://t.me/cibsecurity/62538 · Telegram Post
• https://t.me/aptreports/3718 · Telegram Post
• https://t.me/aptreports/3717 · Telegram Post
• https://t.me/true_secator/4334 · Telegram Post
• https://t.me/cvenotify/49642 · Telegram Post
• https://t.me/aptreports/3940 · Telegram Post
• https://t.me/netlas/60 · Telegram Post
• https://t.me/aptreports/4873 · Telegram Post
• https://twitter.com/pdnuclei_bot/status/2004462218495324606 · Twitter Post
• https://t.me/aptreports/18629 · Telegram Post