Squid Proxy 2.5 Stable/3 Pre NTLM Authentication Helper memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability was found in Squid Proxy 2.5 Stable/3 Pre (Firewall Software) and classified as critical. Affected by this issue is an unknown code block of the component NTLM Authentication Helper. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Buffer overflow in the ntlm_check_auth (NTLM authentication) function for Squid Web Proxy Cache 2.5.x and 3.x, when compiled with NTLM handlers enabled, allows remote attackers to execute arbitrary code via a long password ("pass" variable).
The bug was discovered 06/09/2004. The weakness was presented 06/08/2004 with iDEFENSE (Website). The advisory is available at idefense.com. This vulnerability is handled as CVE-2004-0541 since 06/04/2004. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.
After 2 days, there has been an exploit disclosed. The exploit is available at metasploit.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 622 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 14524 (GLSA-200406-13 : Squid: NTLM authentication helper buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at squid-cache.org. A possible mitigation has been published 1 days after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 12362. In this case the pattern Proxy-Authorization|3A| NTLM TlRMTVNTUAADA
is used for detection.
The vulnerability is also documented in the databases at X-Force (16360) and Tenable (14524). idefense.com is providing further details. See 708 and 823 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.6VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 14524
Nessus Name: GLSA-200406-13 : Squid: NTLM authentication helper buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍
OpenVAS ID: 52454
OpenVAS Name: FreeBSD Ports: squid
OpenVAS File: 🔍
OpenVAS Family: 🔍
MetaSploit ID: squid_ntlm_authenticate.rb
MetaSploit Name: Squid NTLM Authenticate Overflow
MetaSploit File: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍
Patch: squid-cache.org
Snort ID: 12362
Snort Message: EXPLOIT Squid HTTP Proxy-Authorization overflow
Snort Pattern: 🔍
Timeline
09/25/2002 🔍06/04/2004 🔍
06/08/2004 🔍
06/09/2004 🔍
06/09/2004 🔍
06/09/2004 🔍
06/09/2004 🔍
06/09/2004 🔍
06/09/2004 🔍
08/06/2004 🔍
08/30/2004 🔍
06/28/2019 🔍
Sources
Vendor: squid-cache.orgAdvisory: idefense.com⛔
Researcher: http://www.idefense.com
Organization: iDEFENSE
Status: Not defined
CVE: CVE-2004-0541 (🔍)
OVAL: 🔍
X-Force: 16360 - Squid Web Proxy Cache NTLM buffer overflow, High Risk
SecurityFocus: 10500 - Squid Proxy NTLM Authentication Buffer Overflow Vulnerability
Secunia: 11804 - Squid NTLM Authentication Helper Buffer Overflow Vulnerability, Highly Critical
OSVDB: 6791 - Squid ntlm_check_auth Function NTLM Authentication Helper Password Handling Remote Overflow
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍
Entry
Created: 06/09/2004 10:48Updated: 06/28/2019 16:43
Changes: 06/09/2004 10:48 (101), 06/28/2019 16:43 (5)
Complete: 🔍
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