CVE-2018-15369: vulnerability in Cisco IOS Software
Cisco IOS and IOS XE Software TACACS+ Client Denial of Service Vulnerability
Published · Updated
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 2.1%
A vulnerability in the TACACS+ client subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of crafted TACACS+ response packets by the affected software. An attacker could exploit this vulnerability by injecting a crafted TACACS+ packet into an existing TACACS+ session between an affected device and a TACACS+ server or by impersonating a known, valid TACACS+ server and sending a crafted TACACS+ packet to an affected device when establishing a connection to the device. To exploit this vulnerability by using either method, the attacker must know the shared TACACS+ secret and the crafted packet must be sent in response to a TACACS+ request from a TACACS+ client. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Affected products
Cisco · Cisco IOS SoftwareRelated CVEs — Cisco IOS Software
In the same product, most dangerous first.
CVE-2018-0485—Cisco IOS and IOS XE Software SM-1T3/E3 Service Module Denial of Service VulnerabilityEPSS 4.1%CVE-2018-0467—Cisco IOS and IOS XE Software IPv6 Hop-by-Hop Options Denial of Service VulnerabilityEPSS 3.8%CVE-2018-0473—Cisco IOS Software Precision Time Protocol Denial of Service VulnerabilityEPSS 3.5%CVE-2019-1751HIGHCisco IOS Software NAT64 Denial of Service VulnerabilityEPSS 2.5%CVE-2018-15377—Cisco IOS and IOS XE Software Plug and Play Agent Memory Leak VulnerabilityEPSS 1.6%CVE-2018-0466—Cisco IOS and IOS XE Software OSPFv3 Denial of Service VulnerabilityEPSS 1.0%