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CVE-1999-1053

7.5 · HIGH

guestbook.pl cleanses user-inserted SSI commands by removing text between "<!--" and "-->" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache…

Published Sep 13, 1999apacheEPSS 85.20%

Overview

CVE-1999-1053 is a high-severity vulnerability affecting apache http_server. It was published on September 13, 1999 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

guestbook.pl cleanses user-inserted SSI commands by removing text between "<!--" and "-->" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache 1.3.9 and possibly other versions, since Apache allows other closing sequences besides "-->".

Remediation

Check the references section for vendor advisories and patches from apache. Update http_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.securityfocus.com/archive/1/33674Refwww.securityfocus.com/archive/82/27296Refwww.securityfocus.com/archive/82/27560Refwww.securityfocus.com/bid/776Refwww.securityfocus.com/archive/1/33674Refwww.securityfocus.com/archive/82/27296Refwww.securityfocus.com/archive/82/27560Refwww.securityfocus.com/bid/776

How CyberStrike helps

Frequently asked questions

What is CVE-1999-1053?

CVE-1999-1053 is a high-severity vulnerability affecting apache http_server. It was published on September 13, 1999 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-1999-1053?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-1999-1053?

Check the references section for vendor advisories and patches from apache. Update http_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-1999-1053?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-1999-1053 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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