CVE-2021-31590 Information

Description

PwnDoc all versions until 0.4.0 (2021-08-23) has incorrect JSON Webtoken handling leading to incorrect access control. With a valid JSON Webtoken that is used for authentication and authorization a user can keep his admin privileges even if he is downgraded to the �ser\ privilege. Even after a user’s account is deleted the user can still access the administration panel (and add or delete users) and has complete access to the system.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/pwndoc/pwndoc/security/advisories https://github.com/pwndoc/pwndoc/pull/128 https://github.com/pwndoc/pwndoc/pull/74 https://www.dgc.org/responsible_disclosure_pwndoc_jwt https://github.com/pwndoc/pwndoc/commit/15f3dc0e212eda465e05fda0feb002d1bce2939d https://github.com/pwndoc/pwndoc/commit/ff1b868cec55f5b6c7a91e15a2b0b1f4324121ab https://github.com/pwndoc/pwndoc/blob/59519735b0d831d8fd96d7c3387f66d28407e583/CHANGELOG.md#040-2021-08-23

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8