CVE-2023-31135

MEDIUM EPSS 4.9%
Published May 17, 20233y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 17, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

Dgraph is an open source distributed GraphQL database. Existing Dgraph audit logs are vulnerable to brute force attacks due to nonce collisions. The first 12 bytes come from a baseIv which is initialized when an audit log is created. The last 4 bytes come from the length of the log line being encrypted. This is problematic because two log lines will often have the same length, so due to these collisions we are reusing the same nonce many times. All audit logs generated by versions of Dgraph <v23.0.0 are affected. Attackers must have access to the system the logs are stored on. Dgraph users should upgrade to v23.0.0. Users unable to upgrade should store existing audit logs in a secure location and for extra security, encrypt using an external tool like `gpg`.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-326

Affected Products 1

VendorProductVersionRange
dgraphdgraph* <23.0.0

References 3

  • en.wikipedia.org https://en.wikipedia.org/wiki/Cryptographic_nonce
    Technical Description
  • github.com https://github.com/dgraph-io/dgraph/pull/8323
    Issue TrackingPatch
  • github.com https://github.com/dgraph-io/dgraph/security/advisories/GHSA-92wq-q9pq-gw47
    Vendor Advisory

Remediation

  • github.com https://github.com/dgraph-io/dgraph/pull/8323
    Issue TrackingPatch