Information disclosure in Symantec Proxysg Firmware
CVE-2015-4334
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.
Vulnerability class: Information Disclosure
EPSS: 0.033 (87.4th percentile) — read the EPSS interpretation.
Affected products
- Symantec Proxysg_firmware
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2015-4334?
- CVE-2015-4334 is a vulnerability in Symantec Proxysg Firmware, classified under Information Disclosure. Published 2015-12-07.
- Is CVE-2015-4334 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.