SB2016093008 - Access bypass in Pivotal Cloud Foundry Elastic Runtime
Published: September 30, 2016 Updated: October 3, 2016
Security Bulletin ID
SB2016093008
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Access bypass (CVE-ID: CVE-2016-6636)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability alows a remote user to obtain implicit access tokens on the target system.
The weakness is caused by incorrect validation of redirect_uri during OAuth authorization flow. By using different request subdomain attackers can get implicit access tokens.
Successful exploitation of the vulnerability allows a malicious user to access implicit tolens on the vulnerable system.
Remediation
Install update from vendor's website.