VDB
CVE-2020-28473
CVE-2020-28473
PUBLISHED
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.
EPSS 0.24% · 47.9th percentile
Risk Scores
EPSS Score
0.24%
47.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | python-bottle | 0.12.19-1, 0, 0.12.19-1+deb11u1build0.22.04.1 |
| Ubuntu:Pro:14.04:LTS | python-bottle | 0, 0.12.0-1, 0.11.6-1 |
| Ubuntu:Pro:16.04:LTS | python-bottle | 0.12.7-1, 0, 0.12.7-1+deb8u1ubuntu0.1~esm1 |
| Ubuntu:18.04:LTS | python-bottle | 0, 0.12.13-1 |
| Ubuntu:20.04:LTS | python-bottle | 0, 0.12.15-2, 0.12.15-2build1 |
Timeline
- Jan 18, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-28473 third-party-advisory
- https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108 third-party-advisory
- https://github.com/bottlepy/bottle third-party-advisory
- https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/ third-party-advisory
- https://ubuntu.com/security/notices/USN-5105-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-28473 third-party-advisory