Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
0

CVE-2020-28473

Disclosure Date: January 18, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
6.8 Medium
Impact Score:
5.2
Exploitability Score:
1.6
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • bottlepy,
  • debian

Products

  • bottle,
  • debian linux 9.0
Technical Analysis