CVE-2020-5290 - session fixation in rCTF

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MEDIUM

session fixation in rCTF

Published Apr 1, 2020

6.5

MEDIUM

CVSS 3.1

EPSS 0.82%

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.

Affected products

Vendor Redpwn Product Rctf Default
n/a
- Version
  < 2.3
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Redpwn

Rctf

n/a

Version	Status	Constraints
< 2.3	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-384

References (2)

https://github.com/redpwn/rctf/issues/147
x_refsource_MISCExploitThird Party Advisory
https://github.com/redpwn/rctf/security/advisories/GHSA-p5fh-2vhw-fvpq
x_refsource_CONFIRMExploitThird Party Advisory

Link	Providers	Tags
https://github.com/redpwn/rctf/issues/147		x_refsource_MISCExploitThird Party Advisory
https://github.com/redpwn/rctf/security/advisories/GHSA-p5fh-2vhw-fvpq		x_refsource_CONFIRMExploitThird Party Advisory