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As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

🗓️ 14 Oct 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 8 Views

CVE-2020-1945: Ant 1.10.8 temp file protection failed due to fixcrlf, risking build tampering.

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14 Oct 2020 07:00Current
9.3High risk
Vulners AI Score9.3
CVSS 25
CVSS 3.17.5
EPSS0.08235
vulnerability 2020apache anttemporary filesfixcrlf issuebuild tampering
8