Cloud Foundry up to v244 Script command injection

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.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cloud Foundry up to v244. Affected by this issue is some unknown functionality of the component Script. The manipulation leads to command injection. This vulnerability is uniquely identified as CVE-2016-6655. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cloud Foundry up to v244 (Cloud Software). It has been rated as critical. This issue affects an unknown functionality of the component Script. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Cloud Foundry Foundation Cloud Foundry release versions prior to v245 and cf-mysql-release versions prior to v31. A command injection vulnerability was discovered in a common script used by many Cloud Foundry components. A malicious user may exploit numerous vectors to execute arbitrary commands on servers running Cloud Foundry.

The bug was discovered 06/14/2017. The weakness was disclosed 06/13/2017 with IBM Bluemix Team (Website). The advisory is shared at cloudfoundry.org. The identification of this vulnerability is CVE-2016-6655 since 08/10/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version v245 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93889†). The entries VDB-102259 and VDB-102258 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Cloud Software

Name

• Cloud Foundry

Version

• v244

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Cloud Foundry v245

Timelineinfo

08/10/2016 🔍
10/26/2016 +77 days 🔍
06/13/2017 +230 days 🔍
06/13/2017 +0 days 🔍
06/13/2017 +0 days 🔍
06/14/2017 +1 days 🔍
12/27/2020 +1292 days 🔍

Sourcesinfo

Advisory: cloudfoundry.org
Researcher: IBM Bluemix Team
Organization: IBM Bluemix Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6655 (🔍)
GCVE (CVE): GCVE-0-2016-6655
GCVE (VulDB): GCVE-100-102257
SecurityFocus: 93889 - Multiple Cloud Foundry Foundation Products CVE-2016-6655 Command Injection Vulnerability

See also: 🔍

Entryinfo

Created: 06/13/2017 16:58
Updated: 12/27/2020 07:48
Changes: 06/13/2017 16:58 (63), 10/16/2019 11:19 (2), 12/27/2020 07:48 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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