CVE-2015-4334

Description

The default configuration of SGOS in Blue Coat ProxySG before 6.2.16.5, 6.5 before 6.5.7.1, and 6.6 before 6.6.2.1 forwards authentication challenges from upstream origin content servers (OCS) when used in an explicit proxy deployment, which makes it easier for remote attackers to obtain sensitive information via a 407 (aka Proxy Authentication Required) HTTP status code, as demonstrated when using NTLM authentication.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.91% Top 30%
Vendor Advisory bluecoat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1032149 third party advisory vdb entry
https://twitter.com/bugch3ck/status/591492380294979585 third party advisory
https://bto.bluecoat.com/security-advisory/sa93 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-4334?
CVE-2015-4334 has been scored as a medium severity vulnerability.
How to fix CVE-2015-4334?
To fix CVE-2015-4334, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-4334 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-4334 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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