CVE

CVE-2017-6631

Date: (C)2017-09-11   (M)2023-12-22

A vulnerability in the HTTP remote procedure call (RPC) service of set-top box (STB) receivers manufactured by Cisco for Yes could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the firmware of an affected device fails to handle certain XML values that are passed to the HTTP RPC service listening on the local subnet of the device. An attacker could exploit this vulnerability by submitting a malformed request to an affected device. A successful attack could cause the affected device to restart, resulting in a DoS condition. Yes has updated the affected devices with firmware that addresses this vulnerability. Customers are not required to take action. Vulnerable Products: This vulnerability affects YesMaxTotal, YesMax HD, and YesQuattro STB devices. Cisco Bug IDs: CSCvd08812.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:		CVSS V2 Severity:
CVSS Score : 7.5		CVSS Score : 7.8
Exploit Score: 3.9		Exploit Score: 10.0
Impact Score: 3.6		Impact Score: 6.9
CVSS V3 Metrics:		CVSS V2 Metrics:
Attack Vector: NETWORK		Access Vector: NETWORK
Attack Complexity: LOW		Access Complexity: LOW
Privileges Required: NONE		Authentication: NONE
User Interaction: NONE		Confidentiality: NONE
Scope: UNCHANGED		Integrity: NONE
Confidentiality: NONE		Availability: COMPLETE
Integrity: NONE
Availability: HIGH

Reference:

BID-100672

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-stb