uncurl up to 0.06 Access Restriction uncurl.c uncurl_ws_accept WebSocket API Request cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
7.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in uncurl up to 0.06. Impacted is the function uncurl_ws_accept of the file uncurl.c of the component Access Restriction. The manipulation as part of WebSocket API Request results in cross-site request forgery. This vulnerability is cataloged as CVE-2018-6651. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in uncurl up to 0.06 (Network Utility Software). Affected is the function uncurl_ws_accept of the file uncurl.c of the component Access Restriction. The manipulation as part of a WebSocket API Request leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions.

The bug was discovered 01/17/2018. The weakness was shared 02/05/2018 (GitHub Repository). The advisory is available at github.com. This vulnerability is traded as CVE-2018-6651 since 02/05/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.07 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: uncurl 0.07
Patch: github.com

Timelineinfo

01/17/2018 🔍
02/05/2018 +19 days 🔍
02/05/2018 +0 days 🔍
02/05/2018 +0 days 🔍
02/06/2018 +1 days 🔍
02/03/2023 +1823 days 🔍

Sourcesinfo

Advisory: 448cd13e7b18c83855d706c564341ddd1e38e769
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-6651 (🔍)
GCVE (CVE): GCVE-0-2018-6651
GCVE (VulDB): GCVE-100-112854

Entryinfo

Created: 02/06/2018 08:17
Updated: 02/03/2023 15:31
Changes: 02/06/2018 08:17 (61), 01/01/2020 19:34 (2), 02/03/2023 15:31 (6)
Complete: 🔍
Cache ID: 216::103

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