Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-39469PaperCut NG External User Lookup Code Injection Remote Code Execution Vulnerability

High 7.2

In plain English

A high-severity code injection in NG from PaperCut. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 61.4% (higher than 99.2% of all known vulnerabilities).

Severity (CVSS 3.0)7.2High

Exploit odds (30 days)61.4%top 0.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

PaperCut NG External User Lookup Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PaperCut NG. Authentication is required to exploit this vulnerability. The specific flaw exists within the External User Lookup functionality. The issue results from the lack of proper validation of a user-supplied string before using it to execute Java code. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-21013.

Affected products (as reported)

Vendor	Product	Versions
PaperCut	NG	22.0.12

Weakness: CWE-94 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

ZDI-23-1285 x_research-advisory
vendor-provided URL vendor-advisory