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CVE-2009-0255

7.5 · HIGH

The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for…

Published Jan 22, 2009typo3CWE-330EPSS 9.44%

Overview

CVE-2009-0255 is a high-severity vulnerability affecting typo3 typo3. It was published on January 22, 2009 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 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

The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.

Remediation

Check the references section for vendor advisories and patches from typo3. Update typo3 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
typo3typo3>= 4.0, < 4.0.10Affected

References

Refsecunia.com/advisories/33617Refsecunia.com/advisories/33679Reftypo3.org/teams/security/security-bulletins/typo3-sa-2009-001/Refwww.debian.org/security/2009/dsa-1711Refwww.securityfocus.com/bid/33376Refexchange.xforce.ibmcloud.com/vulnerabilities/48132Refsecunia.com/advisories/33617Refsecunia.com/advisories/33679Reftypo3.org/teams/security/security-bulletins/typo3-sa-2009-001/Refwww.debian.org/security/2009/dsa-1711

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0255?

CVE-2009-0255 is a high-severity vulnerability affecting typo3 typo3. It was published on January 22, 2009 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2009-0255?

This vulnerability has a CVSS 3.1 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-2009-0255?

Check the references section for vendor advisories and patches from typo3. Update typo3 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-2009-0255?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0255 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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