Vulnerability Report

CVE-2023-28848

Title: Nextcloud User Oidc Path Traversal / LFI

Path Traversal / LFI

Proof Of Concept

No public PoC currently indexed for CVE-2023-28848.

CWE Category CWE-352
Published Date Apr 04, 2023
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 4.8 CVSS v3.1
Exploit Probability (EPSS)
0.22%

Vulnerability Summary

CVE-2023-28848: user_oidc is the OIDC connect user backend for Nextcloud, an open source collaboration platform. A vulnerability in versions 1.0.0 until 1.3.0 effectively allowed an attacker to bypass the state protection as they could just copy the expected state token from the first request to their second request. Users should upgrade user_oidc to 1.3.0 to receive a patch for the issue. No known workarounds are available.

Impacted Vendors

N
nextcloud 1

Reference Links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f https://github.com/nextcloud/user_oidc/pull/580 https://hackerone.com/reports/1878381 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f https://github.com/nextcloud/user_oidc/pull/580 https://hackerone.com/reports/1878381
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-28848 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.