CVE-2013-6955

webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remote…

published January 9, 2014

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.7th percentile for exploit probability.

CVSS
—
EPSS
85%
Percentile
99.7
In the wild
Unconfirmed
What it is

🚨 A crafty HTTP header is all it takes for an attacker to append data to any file on your Synology DiskStation Manager! Think of it like a guest slipping a note into your mail slot without you noticing — once it's in, they can change the contents of your letters without your permission. This vulnerability could allow a malicious actor to execute arbitrary code. Imagine the chaos if a stranger could not only read your files but also alter them or introduce harmful software into your system! It's a potential recipe for disaster.

Put simply

Think of it like a guest slipping a note into your mail slot without you noticing — once it's in, they can change the contents of your letters without your permission. The flaw in webman/imageSelector.cgi allows attackers to manipulate the SLICEUPLOAD X-TMP-FILE HTTP header, enabling them to append data to arbitrary files within the system. This could lead to remote code execution, posing a significant security threat.

What to do

This vulnerability could allow a malicious actor to execute arbitrary code. Imagine the chaos if a stranger could not only read your files but also alter them or introduce harmful software into your system! It's a potential recipe for disaster. To mitigate this vulnerability, update your Synology DiskStation Manager to version 4.0-2259 or later, 4.2-3243 or later, or 4.3-3810 Update 1 or later. Furthermore, regularly review your security settings and consider restricting unnecessary access to sensitive scripts. You've got this! With a quick update, you can secure your systems and maintain your status as a security hero! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.84571 · 99.7th percentile
Published
2014-01-09T11:00Z
EPSS history
Timeline
  • 09 JAN 11:00Z
    webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remote…
    cvelistv5