CVEvulnerability
CVE-2020-28473
6.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-01-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-444
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.
Affected configurations
• bottlepy bottle (< 0.12.19)
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-444 Inconsistent Interpretation of HTTP Requests weakness
References
- 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
- 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