A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote malicious user to trigger a reload of an affected device, resulting in a denial of service (DoS) condition, or to execute arbitrary code on an affected device. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted Smart Install message to an affected device on TCP port 4786. A successful exploit could allow the malicious user to cause a buffer overflow on the affected device, which could have the following impacts: Triggering a reload of the device, Allowing the malicious user to execute arbitrary code on the device, Causing an indefinite loop on the affected device that triggers a watchdog crash. Cisco Bug IDs: CSCvg76186.
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cisco ios 15.2\\(5\\)e |
Pick your poison in IOS and IOS XE: denial-of-service or remote code execution?
Cisco's ruined Easter for netadmins by revealing three critical-rated flaws, with fixes landing today. The company's IOS and IOS XE software need patching against two bugs, CVE-2018-0151 and CVE-2018-0171. CVE-2018-151 is a bounds-checking error in IOS/IOS XE's quality-of-service subsystem, and can be attacked using malicious packets to UDP port 18999. A successful attack triggers a buffer overrun, either causing a denial-of-service (DoS) or remote code execution (RCE). If you can't patch immedi...