Yaws up to 2.0.3 HTTP_PROXY redirect

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Yaws up to 2.0.3. This affects an unknown function. Performing a manipulation of the argument HTTP_PROXY as part of Environment Variable results in redirect. This vulnerability is reported as CVE-2016-1000108. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Yaws up to 2.0.3. This affects an unknown functionality. The manipulation of the argument HTTP_PROXY as part of a Environment Variable leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.

The bug was discovered 07/18/2016. The weakness was disclosed 12/10/2019 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2016-1000108 since 07/18/2016. 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 T1204.001 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1240 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.0.4 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 6.1
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: Redirect
CWE: CWE-601
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: Yaws 2.0.4
Patch: github.com

Timelineinfo

07/18/2016 🔍
07/18/2016 +0 days 🔍
12/10/2019 +1240 days 🔍
12/11/2019 +1 days 🔍
03/09/2024 +1550 days 🔍

Sourcesinfo

Advisory: 9d8fb070e782c95821c90d0ca7372fc6d7316c78
Status: Not defined

CVE: CVE-2016-1000108 (🔍)
GCVE (CVE): GCVE-0-2016-1000108
GCVE (VulDB): GCVE-100-146847

Entryinfo

Created: 12/11/2019 08:11
Updated: 03/09/2024 11:50
Changes: 12/11/2019 08:11 (41), 12/11/2019 08:16 (17), 03/09/2024 11:50 (5)
Complete: 🔍
Cache ID: 216::103

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