Blue Coat ProxySG, when transparent interception mode is enabled, uses the HTTP Host…
Priority LOW 29CWE-16Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Blue Coat ProxySG, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.
Why it matters now
EPSS 0.01357 71st 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
CPE configurations NVD · 31
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bluecoat:proxysg_va-10:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bluecoat |
| cpe:2.3:a:bluecoat:proxysg_va-15:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bluecoat |
| cpe:2.3:a:bluecoat:proxysg_va-20:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bluecoat |
| cpe:2.3:a:bluecoat:proxysg_va-5:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg210-10:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg210-10:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg210-25:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg210-25:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg210-5:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
- cpe:2.3:a:bluecoat:proxysg_va-10:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
- cpe:2.3:a:bluecoat:proxysg_va-15:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
- cpe:2.3:a:bluecoat:proxysg_va-20:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
- cpe:2.3:a:bluecoat:proxysg_va-5:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg210-10:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg210-10:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg210-25:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg210-25:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg210-5:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
Show 21 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:bluecoat:proxysg_sg210-5:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-10:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-10:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-20:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-20:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-25:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-25:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg510-5:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-10:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-10:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-20:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-20:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-25:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-25:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg810-5:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-10:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-10:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-20:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-20:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-5:-:-:acceleration:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
| cpe:2.3:h:bluecoat:proxysg_sg9000-5:-:-:full_proxy:*:*:*:*:* | not specified by NVD | Vulnerable | Bluecoat |
- cpe:2.3:h:bluecoat:proxysg_sg210-5:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-10:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-10:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-20:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-20:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-25:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-25:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg510-5:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-10:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-10:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-20:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-20:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-25:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-25:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg810-5:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-10:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-10:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-20:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-20:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-5:-:-:acceleration:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
- cpe:2.3:h:bluecoat:proxysg_sg9000-5:-:-:full_proxy:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bluecoat
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1211
- 2026-10-03 Alias added: GHSA-j749-wjv7-4cf2
References
More Bluecoat Proxysg vulnerabilities
- TI-2011-04401 Stack-based buffer overflow in the BCAAA component before build 60258, as used by Blue… CVSS 2.0HIGH 10.0
- TI-2004-00066 The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c… CVSS 3.1HIGH 7.5
- TI-2010-04887 Blue Coat ProxySG before SGOS 4.3.4.1, 5.x before SGOS 5.4.5.1, 5.5 before SGOS 5.5.4.1… CVSS 2.0HIGH 9.3
- TI-2015-07066 Open redirect vulnerability in Blue Coat ProxySG 6.5 before 6.5.8.8 and 6.6 and Advanced… CVSS 3.0HIGH 7.4
- TI-2016-05645 Blue Coat Advanced Secure Gateway 6.6, CacheFlow 3.4, ProxySG 6.5 and 6.6 allows remote… CVSS 3.0HIGH 7.5
- TI-2004-00095 The SSL/TLS handshaking code in OpenSSL 0.9.7a, 0.9.7b, and 0.9.7c, when using Kerberos… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2009-1211 · CVE Program
- CVE-2009-1211 · NVD
- FIRST EPSS
- GHSA-j749-wjv7-4cf2 · 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