This affects all versions of package uvicorn. The request logger provided by the package is vulnerable to ASNI escape sequence injection. Whenever any HTTP request is received, the default behaviour of uvicorn is to log its details to either the console or a log file. When attackers request crafted URLs with percent-encoded escape sequences, the logging component will log the URL after it's been processed with urllib.parse.unquote, therefore converting any percent-encoded characters into their single-character equivalent, which can have special meaning in terminal emulators. By requesting URLs with crafted paths, attackers can: * Pollute uvicorn's access logs, therefore jeopardising the integrity of such files. * Use ANSI sequence codes to attempt to interact with the terminal emulator that's displaying the logs (either in real time or from a file).
References
Link | Resource |
---|---|
https://github.com/encode/uvicorn | Product Third Party Advisory |
https://snyk.io/vuln/SNYK-PYTHON-UVICORN-575560 | Exploit Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: snyk
Published: 2020-07-27T00:00:00
Updated: 2020-07-27T11:25:12
Reserved: 2020-01-21T00:00:00
Link: CVE-2020-7694
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-07-27T12:15:11.870
Modified: 2021-07-21T11:39:23.747
Link: CVE-2020-7694
JSON object: View
Redhat Information
No data.