Description Preview
A directory traversal vulnerability (CWE-22) exists in multiple Symmetricom SyncServer models including S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1. The vulnerability allows attackers to access files outside of the intended directory by manipulating the FileName parameter in the syslog.php script. This could potentially lead to unauthorized access to sensitive system files.
Overview
The vulnerability affects Symmetricom SyncServer devices, which are network time servers used for time synchronization in various enterprise environments. The affected devices include models S100, S200, S250, S300, and S350 with specific firmware versions. The directory traversal vulnerability exists in the syslog.php script, where improper validation of the FileName parameter allows attackers to navigate outside the intended directory structure. This could enable unauthorized access to sensitive system files, potentially leading to information disclosure, system compromise, or denial of service.
Remediation
- Update firmware to the latest version if available from the manufacturer (now Microchip Technology, which acquired Symmetricom).
- If updates are not available, implement network segmentation to restrict access to the management interfaces of affected devices.
- Use access control lists (ACLs) and firewall rules to limit access to the devices' web interfaces.
- Monitor system logs for suspicious access attempts to the syslog.php script.
- Consider implementing a web application firewall (WAF) to filter malicious requests containing directory traversal patterns.
- If possible, disable the vulnerable component if it's not essential for operation.
References
- https://sku11army.blogspot.com/2020/01/symmetricom-syncserver.html - Contains details about the vulnerability and potential exploit methods
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - https://cwe.mitre.org/data/definitions/22.html
- MITRE ATT&CK Technique T1083: File and Directory Discovery - https://attack.mitre.org/techniques/T1083/
Industry ExposureMost to leastThis section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
