VIR Vulnerability Intelligence Relay

CVE-2011-5124

critical
Published 2012-08-26 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
10.0

Description

Stack-based buffer overflow in the BCAAA component before build 60258, as used by Blue Coat ProxySG 4.2.3 through 6.1 and ProxyOne, allows remote attackers to execute arbitrary code via a large packet to the synchronization port (16102/tcp).

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-17513 remote windows verified
Metasploit · 2011-07-09

Blue Coat Authentication and Authorization Agent (BCAAA) 5 - Remote Buffer Overflow (Metasploit)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_windows/misc/bcaaa_bof rank 400
Blue Coat Authentication and Authorization Agent (BCAAA) 5 Buffer Overflow
Source fetch failed: fetch_error — view the original via the link above.

Application impact
VendorProductVersionsFixed
bluecoatproxyone
bluecoatproxysg4.2.6
bluecoatproxysg4.3.2.3
bluecoatproxysg5.1
bluecoatproxysg5.1.6.1
bluecoatproxysg5.2
bluecoatproxysg5.2.2.4
bluecoatproxysg5.2.5.2
bluecoatproxysg5.3
bluecoatproxysg5.3.2.1
bluecoatproxysg5.4
bluecoatproxysg5.4.1.1

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.