CVE-2000-1010

Format string vulnerability in talkd in OpenBSD and possibly other BSD-based OSes allows remote attackers to execute arbitrary commands via a user name that…

published January 22, 2001

CVSS
—
EPSS
5%
Percentile
91.5
In the wild
Unconfirmed
What it is

⚠️ A crafty username is all it takes! This format string vulnerability in talkd lets attackers run arbitrary commands just by including format characters — like a guest at a party who sneaks in their own playlist and cranks the music! 🎶 Think of it like a restaurant that allows customers to dictate their dinner orders with a magic phrase. If someone knows the right words, they could change the menu entirely and serve whatever they want, leaving the chef in a pickle! In this case, a remote attacker could execute any command they desire on the system, potentially wreaking havoc or stealing sensitive information. While the severity is currently marked as 'unknown', the potential for misuse is definitely worth taking seriously!

Put simply

Think of it like a restaurant that allows customers to dictate their dinner orders with a magic phrase. If someone knows the right words, they could change the menu entirely and serve whatever they want, leaving the chef in a pickle! This vulnerability stems from an improper handling of user input in the talkd service, allowing format string characters to be executed as commands. When the input isn't sanitized properly, attackers can exploit this flaw to run whatever code they want.

What to do

In this case, a remote attacker could execute any command they desire on the system, potentially wreaking havoc or stealing sensitive information. While the severity is currently marked as 'unknown', the potential for misuse is definitely worth taking seriously! To mitigate this issue, patch your OpenBSD system to the latest version where this vulnerability is resolved. Additionally, ensure that proper input validation and sanitization practices are enforced in your code to prevent similar vulnerabilities in the future. You've got this! With these steps, you'll be well on your way to fortifying your defenses. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04561 · 91.5th percentile
Published
2001-01-22T05:00Z
EPSS history
Timeline
  • 22 JAN 05:00Z
    Format string vulnerability in talkd in OpenBSD and possibly other BSD-based OSes allows remote attackers to execute arbitrary commands via a user name that…
    cvelistv5