CVE-2021-43206

A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
fortinetCNA
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:U/RC:C
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 42%
VendorProductVersion
fortinetfortiproxy
2.0.0 ≤
𝑥
< 2.0.9
fortinetfortiproxy
7.0.0 ≤
𝑥
< 7.0.2
fortinetfortios
5.6.0 ≤
𝑥
< 6.0.14
fortinetfortios
6.2.0 ≤
𝑥
< 6.2.10
fortinetfortios
6.4.0 ≤
𝑥
< 6.4.8
fortinetfortios
7.0.0 ≤
𝑥
< 7.0.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://fortiguard.com/psirt/FG-IR-21-231
https://fortiguard.com/psirt/FG-IR-21-231