QID 87543

QID 87543: Lighttpd server Denial of service (DoS) Vulnerability (CVE-2022-22707)

lighttpd is an open-source web server optimized for speed-critical environments while remaining standards-compliant, secure, and flexible.

mod_auth in lighttpd allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.

Affected Version:
lighttpd versions before 1.4.46 to 1.4.63

QID Detection Logic (Unauthenticated):
It uses banner check the vulnerable version of lighttpd

Successful exploitation of the vulnerability could allows a remote attacker to cause a Denial of service (DoS) attack.

  • CVSS V3 rated as Medium - 5.9 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
  • Solution
    Customers are advised to upgrade lighttpd server to latest version to remediate the vulnerability.
    Vendor References

    CVEs related to QID 87543

    Software Advisories
    Advisory ID Software Component Link
    lighttpd URL Logo redmine.lighttpd.net/issues/3134