CVE-2020-28473 Detail

Current Description

The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

Nist CVSS score does not match with CNA score
CNA:  Snyk
Base Score:  6.8 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H


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Note: The CNA providing a score has achieved an Acceptance Level of Provider. The NVD will only audit a subset of scores provided by this CNA.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/bottlepy/bottle Product  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/01/msg00019.html Third Party Advisory 
https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/ Third Party Advisory 
https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108 Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-28473
NVD Published Date:
01/18/2021
NVD Last Modified:
01/28/2021
Source:
Snyk