CVE-2017-6628
A vulnerability in SMART-SSL Accelerator functionality for Cisco Wide Area Application Services (WAAS) 6.2.1, 6.2.1a, and 6.2.3a could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition where the WAN optimization…
Does this matter?
Lower severity and a low EPSS score (1.68%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability in SMART-SSL Accelerator functionality for Cisco Wide Area Application Services (WAAS) 6.2.1, 6.2.1a, and 6.2.3a could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition where the WAN optimization could stop functioning while the process restarts. The vulnerability is due to a Secure Sockets Layer/Transport Layer Security (SSL/TLS) alert being incorrectly handled when in a specific SSL/TLS connection state. An attacker could exploit this vulnerability by establishing a SMART-SSL connection through the targeted device. The attacker would then send a crafted stream of SSL/TLS traffic. An exploit could allow the attacker to cause a DoS condition where WAN optimization could stop processing traffic for a short period of time. Cisco Bug IDs: CSCvb71133.
- CVSS 3.0
- 6.8 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 1.68% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399, CWE-755
- Affected
- cisco/wide area application services
- Source
- psirt@cisco.com
References
- http://www.securityfocus.com/bid/98294Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038399
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-waasVendor Advisory
- http://www.securityfocus.com/bid/98294Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038399
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-waasVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.