The default configuration of SGOS in Blue Coat ProxySG before 6.2.16.5, 6.5 before…
Priority LOW 29CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
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.
Why it matters now
EPSS 0.03333 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-4334
- 2026-10-03 Alias added: GHSA-rw25-wq29-68xv
References
More Symantec Proxysg Firmware vulnerabilities
- TI-2007-05562 Cross-site scripting (XSS) vulnerability in the management console in Blue Coat ProxySG… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2015-4334 · CVE Program
- CVE-2015-4334 · NVD
- FIRST EPSS
- GHSA-rw25-wq29-68xv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences