Vulnerability Description
A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to an attempt to double free a region of memory when the webvpn feature is enabled on the Cisco ASA device. An attacker could exploit this vulnerability by sending multiple, crafted XML packets to a webvpn-configured interface on the affected system. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, or cause a reload of the affected device. This vulnerability affects Cisco ASA Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, ASA 1000V Cloud Firewall, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4110 Security Appliance, Firepower 9300 ASA Security Module, Firepower Threat Defense Software (FTD). Cisco Bug IDs: CSCvg35618.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Adaptive Security Appliance Software | < 9.1.7.23 |
| Cisco | Firepower Threat Defense | 6.0.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/102845Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040292Third Party AdvisoryVDB Entry
- https://icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handling-cve-2018-0Third Party Advisory
- https://pastebin.com/YrBcG2LnExploitThird Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- https://www.exploit-db.com/exploits/43986/ExploitThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/102845Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040292Third Party AdvisoryVDB Entry
- https://icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handling-cve-2018-0Third Party Advisory
- https://pastebin.com/YrBcG2LnExploitThird Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- https://www.exploit-db.com/exploits/43986/ExploitThird Party AdvisoryVDB Entry
FAQ
What is CVE-2018-0101?
CVE-2018-0101 is a vulnerability with a CVSS score of 10.0 (CRITICAL). A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the aff...
How severe is CVE-2018-0101?
CVE-2018-0101 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-0101?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Adaptive Security Appliance Software, Cisco Firepower Threat Defense.