Analog denial of service

analog-anlgform-dos (10344) The risk level is classified as MediumMedium Risk


Analog is vulnerable to a denial of service attack, caused by a vulnerability in the optional form interface script. A remote attacker could use the PROGRESSFREQ progress update command to update the Web server error log continuously until all available disk resources are exhausted.


Denial of Service


Upgrade to the latest version of Analog (5.24 or later), available from the Analog Web site. See References.

For Red Hat Powertools 7.1:
Upgrade to the latest version of Analog (5.24.-1 or later), as listed in RHSA-2002:059-13. See References.

For other distributions:
Contact your vendor for upgrade or patch information.


  • Analog Web site: Analog: WWW logfile analysis.
  • Analog Web site : Analog: Security Warning, 14th May 2002.
  • CVE-2002-1154: in Analog before 5.23 does not restrict access to the PROGRESSFREQ progress update command, which allows remote attackers to cause a denial of service (disk consumption) by using the command to report updates more frequently and fill the web server error log.
  • RHSA-2002-059: Updated analog packages are available

Platforms Affected:

  • RedHat Linux Powertools 7.1
  • Stephen Turner Analog prior to 5.23


May 14, 2002

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