PT-2023-23169 · Dgraph · Dgraph

Hakupiku · Published 2023-05-17 · Updated 2023-05-25 · CVE-2023-31135

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Dgraph versions prior to v23.0.0

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. Attackers must have access to the system the logs are stored on.

Recommendations For versions prior to v23.0.0, upgrade to v23.0.0. For users unable to upgrade, store existing audit logs in a secure location and for extra security, encrypt using an external tool like gpg.

Exploit

Fix

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

CVE-2023-31135

GHSA-92WQ-Q9PQ-GW47

Affected Products

Dgraph

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/31xxx/CVE-2023-31135.json · Exploit
• https://github.com/dgraph-io/dgraph/pull/8323 · Patch
• https://github.com/dgraph-io/dgraph/security/advisories/GHSA-92wq-q9pq-gw47 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-31135 · Security Note
• https://osv.dev/vulnerability/GHSA-92wq-q9pq-gw47 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-31135 · Vendor Advisory
• https://github.com/dgraph-io/dgraph · Note
• https://github.com/dgraph-io/dgraph/releases/tag/v23.0.0 · Note
• https://t.me/cibsecurity/64339 · Telegram Post
• https://en.wikipedia.org/wiki/Cryptographic_nonce · Note