CVE-2020-5290
Medium
Description
In RedpwnCTF before version 2.3, there is a session fixation vulnerability in exploitable through the `#token=$ssid` hash when making a request to the `/verify` endpoint. An attacker team could potentially steal flags by, for example, exploiting a stored XSS payload in a CTF challenge so that victim teams who solve the challenge are unknowingly (and against their will) signed into the attacker team's account. Then, the attacker can gain points / value off the backs of the victims. This is patched in version 2.3.
SeverityMedium
CVSS6.5
Exploit probability—
ProductCtfd Rctf
PublishedApr 1, 2020
First seenApr 1, 2020
Weakness typeCWE-384CWE-384
How to fix
Update
- ctfd rctf2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ctfd rctf | v < 2.3 | 2.3 |
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