CVE-2021-43206
published 2022-05-04CVE-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…
PriorityP419medium4.3CVSS 3.1
AVNACLPRNUIRSUCLINAN
EPSS
0.77%
51.2th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fortinet | fortinet | — | — |
| fortinet | fortios | — | — |
| fortinet | fortios | >= 5.6.0 < 6.0.14 | 6.0.14 |
| fortinet | fortios | >= 6.2.0 < 6.2.10 | 6.2.10 |
| fortinet | fortios | >= 6.4.0 < 6.4.8 | 6.4.8 |
| fortinet | fortios | >= 7.0.0 < 7.0.4 | 7.0.4 |
| fortinet | fortiproxy | — | — |
| fortinet | fortiproxy | >= 2.0.0 < 2.0.9 | 2.0.9 |
| fortinet | fortiproxy | >= 7.0.0 < 7.0.2 | 7.0.2 |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-9645-9xqx-6r37: A server-generated error message containing sensitive information in Fortinet FortiOS 7
ghsa_unreviewed·2022-05-05
CVE-2021-43206 [MEDIUM] CWE-209 GHSA-9645-9xqx-6r37: A server-generated error message containing sensitive information in Fortinet FortiOS 7
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.
Fortinet
Information disclosure in web proxy error pages
vendor_fortinet·2022-05-04·CVSS 4.3
CVE-2021-43206 [MEDIUM] CWE-209 Information disclosure in web proxy error pages
FG-IR-21-231: Information disclosure in web proxy error pages
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.
CVEs: CVE-2021-43206
CWEs: CWE-209
CVSS: 4.3 (medium)
Affected products: FortiOS, FortiProxy, Fortinet
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-05-04
Published