CVE-2020-28473
The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking.
Does this matter?
Lower severity and a low EPSS score (1.76%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
- EPSS
- 1.76% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- bottlepy/bottle · debian/debian linux
- Source
- report@snyk.io
References
- https://github.com/bottlepy/bottleProduct, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00019.htmlThird Party Advisory
- https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/Third Party Advisory
- https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108Exploit, Third Party Advisory
- https://github.com/bottlepy/bottleProduct, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00019.htmlThird Party Advisory
- https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/Third Party Advisory
- https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.