// For flags

CVE-2024-39347

Synology RT6600ax Improper Access Control Firewall Bypass Vulnerability

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Incorrect default permissions vulnerability in firewall functionality in Synology Router Manager (SRM) before 1.2.5-8227-11 and 1.3.1-9346-8 allows man-in-the-middle attackers to access highly sensitive intranet resources via unspecified vectors.

This vulnerability allows remote attackers to bypass firewall rules and access the LAN interface on affected installations of Synology RT6600ax routers. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of firewall rules. The issue results from improper access control after the initial setup. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root.

*Credits: Tri and Bien Pham (@bienpnn) from Team Orca of Sea Security working with Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-21 CVE Published
  • 2024-06-24 CVE Reserved
  • 2024-07-26 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-276: Incorrect Default Permissions
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Synology
Search vendor "Synology"
 Synology Router Manager (SRM)
Search vendor "Synology" for product "Synology Router Manager (SRM)"
 >= 1.3.0 < 1.3.1-9346-8
Search vendor "Synology" for product "Synology Router Manager (SRM)" and version " >= 1.3.0 < 1.3.1-9346-8"
en
Affected
Synology
Search vendor "Synology"
 Synology Router Manager (SRM)
Search vendor "Synology" for product "Synology Router Manager (SRM)"
 >= 1.2.0 < 1.2.5-8227-11
Search vendor "Synology" for product "Synology Router Manager (SRM)" and version " >= 1.2.0 < 1.2.5-8227-11"
en
Affected