IPP Attributes Sanitization Vulnerability in CUPS libcupsfilters
CVE-2024-47076

8.6HIGH

Key Information:

Vendor
Openprinting
Status
Libcupsfilters
Vendor
CVE Published:
26 September 2024

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 71%

Summary

CUPS, the open-source printing system, alongside its component libcupsfilters, is exposed to a code injection vulnerability. This flaw arises from the cfGetPrinterAttributes5 function within libcupsfilters, which fails to adequately sanitize Internet Printing Protocol (IPP) attributes returned from an IPP server. As a result, unverified and potentially malicious data can be utilized for generating Printer Description (PPD) files. This vulnerability could allow attackers to exploit the system by injecting harmful commands or altering print job behaviors, thereby compromising the integrity of the CUPS printing environment.

Affected Version(s)

libcupsfilters <= 2.1b1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

jugular
Created by lkarlslund

References

https://github.com/OpenPrinting/libcupsfilters/security/a...
x_refsource_CONFIRM
https://github.com/OpenPrinting/cups-browsed/security/adv...
x_refsource_MISC
https://github.com/OpenPrinting/cups-filters/security/adv...
x_refsource_MISC

EPSS Score

71% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.