CVE-2011-5124

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…

published August 26, 2012

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.0th percentile for exploit probability.

CVSS
—
EPSS
55%
Percentile
99.0
In the wild
Unconfirmed
What it is

⚠️ A stack-based buffer overflow in Blue Coat ProxySG could let attackers execute arbitrary code just by sending a single large packet! Think of it like a restaurant kitchen that keeps accepting oversized orders without checking if they can actually fit. One too many giant orders, and the whole kitchen may become chaotic, allowing unauthorized chefs to cook up something naughty! If exploited, an attacker could potentially run malicious code on the server, gaining control over it and possibly accessing sensitive data. This could have devastating consequences, leading to data breaches or service disruptions for organizations using these proxy services.

Put simply

Think of it like a restaurant kitchen that keeps accepting oversized orders without checking if they can actually fit. One too many giant orders, and the whole kitchen may become chaotic, allowing unauthorized chefs to cook up something naughty! This vulnerability allows remote attackers to trigger a buffer overflow by sending oversized packets to the synchronization port (16102/tcp), enabling execution of arbitrary code on affected systems.

What to do

If exploited, an attacker could potentially run malicious code on the server, gaining control over it and possibly accessing sensitive data. This could have devastating consequences, leading to data breaches or service disruptions for organizations using these proxy services. To protect against this, ensure your Blue Coat ProxySG is updated to a version after build 60258. Additionally, configure firewall rules to limit incoming traffic on port 16102 to trusted sources only. You've got this! By taking these steps, you'll help keep your network secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.54648 · 99.0th percentile
Published
2012-08-26T19:00Z
EPSS history
Timeline
  • 26 AUG 19:00Z
    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…
    cvelistv5