cURL/libcURL up to 7.15.1 http_negotiate.c Curl_input_negotiate credentials management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in cURL and libcURL up to 7.15.1. This impacts the function Curl_input_negotiate of the file http_negotiate.c. Performing a manipulation results in credentials management. This vulnerability is identified as CVE-2011-2192. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in cURL and libcURL up to 7.15.1 (Network Utility Software). This affects the function Curl_input_negotiate of the file http_negotiate.c. The manipulation with an unknown input leads to a credentials management vulnerability. CWE is classifying the issue as CWE-255. This is going to have an impact on confidentiality. The summary by CVE is:

The Curl_input_negotiate function in http_negotiate.c in libcurl 7.10.6 through 7.21.6, as used in curl and other products, always performs credential delegation during GSSAPI authentication, which allows remote servers to impersonate clients via GSSAPI requests.

The weakness was released 07/07/2011 (Website). It is possible to read the advisory at curl.haxx.se. This vulnerability is uniquely identified as CVE-2011-2192 since 05/31/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 68300 (Oracle Linux 4 / 5 / 6 : curl (ELSA-2011-0918)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119919 (Apple Mac OS X Lion v10.7.3 and Security Update 2012-001 Not Installed (APPLE-SA-2012-02-01-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (68201), Tenable (68300), SecurityFocus (BID 48434†), Secunia (SA45088†) and SecurityTracker (ID 1025713†). Entries connected to this vulnerability are available at VDB-60083, VDB-60082, VDB-60081 and VDB-60080. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 68300
Nessus Name: Oracle Linux 4 / 5 / 6 : curl (ELSA-2011-0918)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 69972
OpenVAS Name: Debian Security Advisory DSA 2271-1 (curl)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/31/2011 🔍
06/23/2011 +23 days 🔍
06/24/2011 +1 days 🔍
06/27/2011 +3 days 🔍
07/04/2011 +7 days 🔍
07/06/2011 +2 days 🔍
07/06/2011 +0 days 🔍
07/07/2011 +1 days 🔍
07/07/2011 +0 days 🔍
07/12/2013 +736 days 🔍
03/23/2015 +619 days 🔍
11/14/2021 +2428 days 🔍

Sourcesinfo

Advisory: RHSA-2011:0918
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-2192 (🔍)
GCVE (CVE): GCVE-0-2011-2192
GCVE (VulDB): GCVE-100-57891

OVAL: 🔍
IAVM: 🔍

X-Force: 68201
SecurityFocus: 48434 - cURL/libcURL GSS/Negotiate Feature Spoofing Security Vulnerability
Secunia: 45088 - Debian update for curl, Not Critical
SecurityTracker: 1025713
Vulnerability Center: 32124 - cURL/libcURL GSS/Negotiate Malfunction Allows Spoofing Attacks, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/14/2021 08:59
Changes: 03/23/2015 16:50 (69), 03/18/2019 20:22 (19), 11/14/2021 08:52 (3), 11/14/2021 08:56 (1), 11/14/2021 08:59 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!