8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
0.001 Low
EPSS
Percentile
46.1%
Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced upload validators in order to prevent potentially dangerous files from being uploaded and Content-Security-Policy definition to prevent cross-site-scripting attacks.
The upload validation checks were not 100% robust which left the possibility to circumvent them and upload a potentially dangerous file which allows execution of arbitrary JavaScript in the browser. Additionally we’ve discovered that Nginx’s proxy_pass
directive will strip some headers negating protections built into Kiwi TCMS when served behind a reverse proxy.
If serving Kiwi TCMS behind a reverse proxy make sure that additional header values are still passed to the client browser. If they aren’t redefine them inside the proxy configuration. See etc/nginx.conf#L66-L68 and etc/nginx.conf#L87
Disclosed by M Nadeem Qazi.
github.com/advisories/GHSA-2fqm-m4r2-fh98
github.com/kiwitcms/Kiwi/blob/master/etc/nginx.conf#L66-L68
github.com/kiwitcms/Kiwi/blob/master/etc/nginx.conf#L87
github.com/kiwitcms/kiwi/commit/d789f4b51025de4f8c747c037d02e1b0da80b034
github.com/kiwitcms/Kiwi/security/advisories/GHSA-2fqm-m4r2-fh98
huntr.dev/bounties/6aea9a26-e29a-467b-aa5a-f767f0c2ec96/
kiwitcms.org/blog/kiwi-tcms-team/2023/06/06/kiwi-tcms-124/
nvd.nist.gov/vuln/detail/CVE-2023-33977