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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% · 47.5th percentile

Risk Scores

EPSS Score
0.24%
47.5th percentile

Affected Products

VendorProductVersions
Ubuntu:22.04:LTSpython-bottle0.12.19-1+deb11u1build0.22.04.1, 0.12.19-1, 0
Ubuntu:Pro:14.04:LTSpython-bottle0.12.0-1, 0.11.6-1, 0.12.0-1ubuntu0.1~esm1
Ubuntu:Pro:16.04:LTSpython-bottle0.12.7-1+deb8u1ubuntu0.1~esm1, 0.12.7-1+deb8u1build0.16.04.1, 0.12.7-1
Ubuntu:18.04:LTSpython-bottle0, 0.12.13-1
Ubuntu:20.04:LTSpython-bottle0.12.15-2, 0.12.15-2build1, 0.12.15-2.1

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References

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