CVE-2021-34371

Neo4j through 3.4.18 (with the shell server enabled) exposes an RMI service that arbitrarily deserializes Java objects, e.g., through setSessionVariable. An attacker can abuse this for remote code execution because there are dependencies with exploitable gadget chains.

CVSS v3.1

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

CVSS v3.1

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

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

13.39% chance of exploitation in the next 30 days, 96th percentile

Published

2021-08-05

Updated

2024-08-04

Proof-of-concept exploits (3)

• https://www.exploit-db.com/exploits/50170
• tavgar/CVE-2021-343710★ · 2025-04-21
• zwjjustdoit/CVE-2021-34371.jar32★ · 2021-09-06

Vulhub environments (1)

• vulhub/vulhub/tree/master/neo4j/CVE-2021-34371

References

• CVE Record
• NVD entry

Related

• CVE-2021-39141
• CVE-2021-39144
• CVE-2021-39150
• CVE-2022-23131
• CVE-2021-34370
• CVE-2021-3438