VDB-100423 · CVE-2017-7468 · BID 97962

cURL/libcURL up to 7.53.1 TLS Session certificate validation

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.
6.4	$0-$5k	0.00

A vulnerability classified as critical was found in cURL and libcURL up to 7.53.1 (Network Utility Software). Affected by this vulnerability is an unknown functionality of the component TLS Session Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 04/19/2017. The weakness was presented 04/19/2017 (Website). It is possible to read the advisory at curl.haxx.se. This vulnerability is known as CVE-2017-7468 since 04/05/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 103282 (GLSA-201709-14 : cURL: Multiple vulnerabilities), 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.

Upgrading to version 7.54.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103282). See 104239 for similar entry.

Productinfo

Type

Network Utility Software

Name

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 4.8
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
ATT&CK: T1587.003

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 103282
Nessus Name: GLSA-201709-14 : cURL: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207922
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: cURL/libcURL 7.54.0

Timelineinfo

04/05/2017 🔍
04/19/2017 +14 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/21/2017 +2 days 🔍
04/21/2017 +0 days 🔍
09/18/2017 +150 days 🔍
07/16/2018 +301 days 🔍
12/01/2022 +1599 days 🔍

Sourcesinfo

Advisory: curl.haxx.se
Researcher: lijian996@users.noreply.github.com.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7468 (🔍)
SecurityTracker: 1038341
SecurityFocus: 97962 - cURL/libcURL CVE-2017-7468 Remote Security Bypass Vulnerability
OSVDB: - CVE-2017-7468 - curl and libcurl - Authentication Bypass Issue

See also: 🔍

Entryinfo

Created: 04/21/2017 11:23
Updated: 12/01/2022 17:01
Changes: 04/21/2017 11:23 (65), 09/19/2020 10:39 (15), 12/21/2020 12:07 (3), 12/21/2020 12:13 (1), 12/21/2020 12:17 (1), 12/01/2022 17:01 (12)
Complete: 🔍