cURL/libcURL up to 7.42.1 HTTP Basic Authentication Credentials information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in cURL and libcURL up to 7.42.1. Affected by this vulnerability is an unknown functionality of the component HTTP Basic Authentication. The manipulation leads to information disclosure (Credentials). This vulnerability is listed as CVE-2015-3236. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in cURL and libcURL up to 7.42.1 (Network Utility Software). This issue affects some unknown functionality of the component HTTP Basic Authentication. The manipulation with an unknown input leads to a information disclosure vulnerability (Credentials). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

cURL and libcurl 7.40.0 through 7.42.1 sends the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via unspecified vectors.

The weakness was presented 06/22/2015 (Website). It is possible to read the advisory at curl.haxx.se. The identification of this vulnerability is CVE-2015-3236 since 04/10/2015. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 84254 (FreeBSD : cURL -- Multiple Vulnerability (2438d4af-1538-11e5-a106-3c970e169bc2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350151 (Amazon Linux Security Advisory for curl: ALAS-2015-551).

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

The vulnerability is also documented in the databases at Tenable (84254), SecurityFocus (BID 75385†) and Vulnerability Center (SBV-57438†). See VDB-76044 for similar entry. 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: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Credentials
Class: Information disclosure / Credentials
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84254
Nessus Name: FreeBSD : cURL -- Multiple Vulnerability (2438d4af-1538-11e5-a106-3c970e169bc2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-551
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2015 🔍
06/17/2015 +68 days 🔍
06/17/2015 +0 days 🔍
06/18/2015 +1 days 🔍
06/22/2015 +4 days 🔍
06/22/2015 +0 days 🔍
06/22/2015 +0 days 🔍
06/24/2015 +2 days 🔍
03/21/2016 +271 days 🔍
02/01/2019 +1047 days 🔍

Sourcesinfo

Advisory: curl.haxx.se
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-3236 (🔍)
GCVE (CVE): GCVE-0-2015-3236
GCVE (VulDB): GCVE-100-76043
SecurityFocus: 75385 - cURL/libcURL CVE-2015-3236 Information Disclosure Vulnerability
Vulnerability Center: 57438 - cURL and libcurl <7.43.0 Remote Information Disclosure due to lingering HTTP Credentials in Connection Re-use, Medium

See also: 🔍

Entryinfo

Created: 06/24/2015 09:53
Updated: 02/01/2019 14:48
Changes: 06/24/2015 09:53 (67), 02/01/2019 14:48 (10)
Complete: 🔍
Cache ID: 216:B9B:103

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

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