Cloud Foundry HTTP Header input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Cloud Foundry. It has been declared as critical. This impacts an unknown function of the component HTTP Header Handler. The manipulation results in input validation. This vulnerability is identified as CVE-2017-4994. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Cloud Foundry (Cloud Software) (version now known). Affected is some unknown processing of the component HTTP Header Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity. CVE summarizes:

An issue was discovered in Cloud Foundry Foundation cf-release versions prior to v263; UAA release 2.x versions prior to v2.7.4.18, 3.6.x versions prior to v3.6.12, 3.9.x versions prior to v3.9.14, and other versions prior to v4.3.0; and UAA bosh release (uaa-release) 13.x versions prior to v13.16, 24.x versions prior to v24.11, 30.x versions prior to 30.4, and other versions prior to v40. There was an issue with forwarded http headers in UAA that could result in account corruption.

The bug was discovered 06/06/2017. The weakness was released 06/13/2017 (Website). The advisory is shared for download at cloudfoundry.org. This vulnerability is traded as CVE-2017-4994 since 12/29/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-102275, VDB-102274 and VDB-102272. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 🔍

Timelineinfo

12/29/2016 🔍
06/06/2017 +159 days 🔍
06/13/2017 +7 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
10/16/2019 +855 days 🔍

Sourcesinfo

Advisory: cloudfoundry.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4994 (🔍)
GCVE (CVE): GCVE-0-2017-4994
GCVE (VulDB): GCVE-100-102276
See also: 🔍

Entryinfo

Created: 06/13/2017 17:04
Updated: 10/16/2019 13:04
Changes: 06/13/2017 17:04 (57), 10/16/2019 13:04 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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