VDB-231816 · CVE-2023-35853 · EUVD-2023-39846

Suricata up to 6.0.12 Lua Rule Remote Code Execution

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Suricata up to 6.0.12 and classified as critical. This affects an unknown part of the component Lua Rule Handler. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2023-35853. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Suricata up to 6.0.12. Affected is an unknown code of the component Lua Rule Handler. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code. This is addressed in 6.0.13 by disabling Lua unless allow-rules is true in the security lua configuration section.

The weakness was released 06/19/2023 as b95bbcc66db526ffcc880eb439dbe8abc87a81da. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-35853. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 226425 (Linux Distros Unpatched Vulnerability : CVE-2023-35853), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.13 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b95bbcc66db526ffcc880eb439dbe8abc87a81da is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (226425) and EUVD (EUVD-2023-39846). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Suricata

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 226425
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-35853

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Suricata 6.0.13
Patch: b95bbcc66db526ffcc880eb439dbe8abc87a81da

Timelineinfo

06/19/2023 🔍
06/19/2023 +0 days 🔍
06/19/2023 +0 days 🔍
01/11/2026 +937 days 🔍

Sourcesinfo

Advisory: b95bbcc66db526ffcc880eb439dbe8abc87a81da
Status: Confirmed

CVE: CVE-2023-35853 (🔍)
GCVE (CVE): GCVE-0-2023-35853
GCVE (VulDB): GCVE-100-231816
EUVD: 🔍

Entryinfo

Created: 06/19/2023 06:54
Updated: 01/11/2026 14:09
Changes: 06/19/2023 06:54 (40), 07/15/2023 06:47 (1), 07/15/2023 06:56 (11), 12/11/2024 18:46 (15), 03/06/2025 00:35 (2), 04/25/2025 12:32 (3), 01/11/2026 14:09 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.