CVE-2019-9901GHSA-2WMF-P7F8-W42HGHSA-XCX5-93PW-JW2W
Envoy 1.9.0 and before does not normalize HTTP URL paths.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.9.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Envoy 1.9.0 and before does not normalize HTTP URL paths. A remote attacker may craft a relative path, e.g., something/../admin, to bypass access control, e.g., a block on /admin. A backend server could then interpret the non-normalized path and provide an attacker access beyond the scope provided for by the access control policy.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a n/a
Version range not reported
- github.com/envoyproxy/envoyGo
fixed in 1.9.1