Privilege Escalation Vulnerability in PPP Package: CVE-2024-58250
Summary
DEBIAN-CVE-2024-58250: The passprompt plugin in pppd in ppp before 2.5.2 mishandles privileges. Affects ppp versions < 2.5.2-1+1. Fixed in 2.5.2-1+1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
PPP (Point-to-Point Protocol) is a data link layer communication protocol used to establish a direct connection between two network nodes. It is widely utilized in various networking applications, including dial-up connections and VPNs. The PPP package in Debian versions 13 and 14 has been identified with a vulnerability that affects the passprompt plugin in pppd, which is responsible for handling user prompts during the authentication process.
Vulnerability Detail
The vulnerability, identified as CVE-2024-58250, originates from the passprompt plugin in pppd prior to version 2.5.2. This issue arises from improper privilege handling, which could allow an attacker to escalate privileges and potentially execute arbitrary code with elevated permissions. The ramifications of this vulnerability could lead to unauthorized access to sensitive information or control over the affected system, making it critical for users to address this issue promptly.
How To Fix
Minimum fixed version
2.5.2-1+1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ppp
Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the passprompt plugin in pppd configuration to mitigate the risk of privilege escalation until the package can be updated. This can be done by editing the pppd configuration file and commenting out or removing the line that loads the passprompt plugin.
Conclusion
The CVE-2024-58250 vulnerability in the PPP package poses a significant risk due to improper privilege handling in the passprompt plugin. Users are strongly advised to update to the patched version to mitigate potential security threats. Temporary workarounds are available, but they should not replace the need for a proper update.
See every vulnerability recorded for ppp →
FAQ
CVE-2024-58250 is a vulnerability in the PPP package that allows for privilege escalation due to improper handling of user prompts in the passprompt plugin.
The vulnerability affects PPP versions prior to 2.5.2 in Debian 13 and 14.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If an immediate update is not possible, consider disabling the passprompt plugin in your pppd configuration as a temporary workaround.
More information can be found in the official Debian CVE database at https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-58250.json.
References
Related vulnerabilities
Recent vulnerabilities recorded for ppp.