CVE-2020-8182 - Improper Preservation of Permissions

Severity

80%

Complexity

21%

Confidentiality

98%

Improper access control in Nextcloud Deck 0.8.0 allowed an attacker to reshare boards shared with them with more permissions than they had themselves.

CVSS 3.1 Base Score 8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P).

Overview

First reported 4 years ago

2020-10-05 14:15:00

Last updated 4 years ago

2020-10-14 13:48:00

Affected Software

Nextcloud Deck 0.8.0

0.8.0

References

https://hackerone.com/reports/827816

https://nextcloud.com/security/advisory/?id=NC-SA-2020-025

https://hackerone.com/reports/827816

Exploit, Third Party Advisory

https://nextcloud.com/security/advisory/?id=NC-SA-2020-025

Vendor Advisory

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