CVE-2021-3907: high-severity vulnerability in Cloudflare octorpki
Arbitrary filepath traversal via URI injection
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 4.2%
OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
Cloudflare · octorpkiRelated CVEs — Cloudflare octorpki
In the same product, most dangerous first.
CVE-2021-3909MEDIUMInfinite open connection causes OctoRPKI to hang foreverEPSS 1.6%CVE-2021-3761HIGHOctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength valuesEPSS 1.2%CVE-2021-3910MEDIUMNUL character in ROA causes OctoRPKI to crashEPSS 1.2%CVE-2021-3911MEDIUMMisconfigured IP address field in ROA leads to OctoRPKI crashEPSS 0.9%CVE-2021-3912MEDIUMOctoRPKI crashes when processing GZIP bomb returned via malicious repositoryEPSS 0.9%CVE-2021-3908MEDIUMInfinite certificate chain depth results in OctoRPKI running foreverEPSS 0.7%