Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2020-7694 | First vendor Publication | 2020-07-27 |
Vendor | Cve | Last vendor Modification | 2021-07-21 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | |||
---|---|---|---|
Overall CVSS Score | 7.5 | ||
Base Score | 7.5 | Environmental Score | 7.5 |
impact SubScore | 3.6 | Temporal Score | 7.5 |
Exploitabality Sub Score | 3.9 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | High | Availability Impact | None |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N) | |||
---|---|---|---|
Cvss Base Score | 5 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
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). |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7694 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-116 | Improper Encoding or Escaping of Output |
50 % | CWE-94 | Failure to Control Generation of Code ('Code Injection') |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 |
Sources (Detail)
Source | Url |
---|---|
MISC | https://github.com/encode/uvicorn https://snyk.io/vuln/SNYK-PYTHON-UVICORN-575560 |
Alert History
Date | Informations |
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2021-08-05 01:40:42 |
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2021-07-21 17:23:34 |
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2021-05-04 13:57:23 |
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2021-04-22 03:07:57 |
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2020-08-05 00:23:07 |
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2020-07-27 17:22:56 |
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