CVE-2017-16228

Dulwich before 0.18.5, when an SSH subprocess is used, allows remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in…

published October 29, 2017

CVSS
—
EPSS
4%
Percentile
89.7
In the wild
Unconfirmed
What it is

⚡ A sneaky dash in an SSH URL could grant attackers the keys to your kingdom! Think of it like a delivery driver misunderstanding an address because of a misplaced hyphen—one dash leads them to a completely different route, allowing unwanted visitors inside! This vulnerability allows remote attackers to execute arbitrary commands on your system, which could lead to unauthorized access and complete control over your environment. The consequences could be absolutely devastating, with attackers able to manipulate your data or disrupt services.

Put simply

Think of it like a delivery driver misunderstanding an address because of a misplaced hyphen—one dash leads them to a completely different route, allowing unwanted visitors inside! Dulwich versions before 0.18.5 are vulnerable when an SSH subprocess is invoked with an ssh URL that has an initial dash in the hostname. This oversight enables attackers to exploit the command execution process, executing whatever commands they desire.

What to do

This vulnerability allows remote attackers to execute arbitrary commands on your system, which could lead to unauthorized access and complete control over your environment. The consequences could be absolutely devastating, with attackers able to manipulate your data or disrupt services. Upgrade Dulwich to version 0.18.5 or later immediately to close this security gap. Additionally, review your SSH configurations to ensure no similar issues are present in your setup. It's essential to maintain an updated list of dependencies and regularly audit your systems. You've got this! With a quick update, you can lock down your system tight! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03706 · 89.7th percentile
Published
2017-10-29T20:00Z
EPSS history
Timeline
  • 29 OCT 20:00Z
    Dulwich before 0.18.5, when an SSH subprocess is used, allows remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in…
    cvelistv5