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CVE
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CVE-2020-28473Date: (C)2021-01-19   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.8CVSS Score : 5.8
Exploit Score: 1.6Exploit Score: 8.6
Impact Score: 5.2Impact Score: 4.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: HIGHAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: REQUIREDConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://lists.debian.org/debian-lts-announce/2021/01/msg00019.html
https://github.com/bottlepy/bottle
https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/
https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108

CPE    1
cpe:/o:debian:debian_linux:9.0
CWE    1
CWE-444
OVAL    3
oval:org.secpod.oval:def:706175
oval:org.secpod.oval:def:75983
oval:org.secpod.oval:def:89049472

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