Cisco has released a security update for CISCO Prime Home remote management and provisioning solution to fix a flaw that could be exploited to authentication bypass. The experts at Cisco have discovered the critical authentication bypass flaw during an internal security testing.
The Cisco Prime Home is a product used by Internet service providers (ISPs) to view customers’ home networks, it allows to make configuration changes and software upgrades, and could be used for the remote diagnostics.
The flaw, tracked as CVE-2017-3791, resides in the web-based user interface of the Cisco Prime Home, it can be remotely exploited by an unauthenticated attacker to bypass authentication and execute any action with administrator privileges.
“The vulnerability is due to a processing error in the role-based access control (RBAC) of URLs. An attacker could exploit this vulnerability by sending API commands via HTTP to a particular URL without prior authentication.” states the Cisco advisory. “An exploit could allow the attacker to perform any actions in Cisco Prime Home with administrator privileges.”
The flaw affects Cisco Prime Home versions 6.3, 6.4 and 6.5, versions 5.2 and earlier are not impacted. Cisco fixed the issue with the version 126.96.36.199, It is important to highlight the absence of a workaround.
The experts at the Cisco Product Security Incident Response Team (PSIRT) are not aware of any public announcements or exploitation of the flaw.
(Security Affairs – Prime Home, hacking)
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