CVE-2018-15369— Cisco IOS and IOS XE Software TACACS+ Client Denial of Service Vulnerability
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I. Basic Information for CVE-2018-15369
Vulnerability Information
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Vulnerability Title
Cisco IOS and IOS XE Software TACACS+ Client Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS Software和IOS XE Software TACACS+客户端子系统输入验证漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS Software和IOS XE Software都是美国思科（Cisco）公司为其网络设备开发的操作系统。TACACS+是其中的一个终端访问控制子系统。 Cisco IOS Software和IOS XE Software中的TACACS+客户端子系统存在输入验证漏洞，该漏洞源于受影响的软件没有正确地处理特制的TACACS+响应数据包。远程攻击者可通过向受影响设备和TACACS+服务器之间已存在的TACACS+会话注入特制的TACACS+数据包或伪造已知有效的TACACS+服务器并向受
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco IOS Software | n/a | - |
II. Public POCs for CVE-2018-15369
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-tacplusvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2018-15369
Same Patch Batch · Cisco · 2018-10-05 · 110 CVEs total
| CVE-2018-15391 | Cisco Remote PHY IPv4 Fragment Denial of Service Vulnerability | |
| CVE-2018-15408 | Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerab | |
| CVE-2018-15407 | Cisco HyperFlex World-Readable Sensitive Information Vulnerability | |
| CVE-2018-15406 | Cisco UCS Director Stored Cross-Site Scripting Vulnerability | |
| CVE-2018-15405 | Cisco Integrated Management Controller Supervisor and Cisco UCS Director Authenticated Web | |
| CVE-2018-15404 | Cisco Integrated Management Controller Supervisor and Cisco UCS Director System Resources | |
| CVE-2018-15403 | Multiple Cisco Unified Communications Products Open Redirect Vulnerability | |
| CVE-2018-15401 | Cisco Hosted Collaboration Mediation Fulfillment Cross-Site Request Forgery Vulnerability | |
| CVE-2018-15400 | Cisco Cloud Services Platform 2100 Cross-Site Scripting Vulnerability | |
| CVE-2018-15399 | Cisco Adaptive Security Appliance TCP Syslog Denial of Service Vulnerability | |
| CVE-2018-15398 | Cisco Adaptive Security Appliance Access Control List Bypass Vulnerability | |
| CVE-2018-15397 | Cisco Adaptive Security Appliance IPsec VPN Denial of Service Vulnerability | |
| CVE-2018-15396 | Cisco Unity Connection File Upload Denial of Service Vulnerability | |
| CVE-2018-15392 | Cisco Industrial Network Director DHCP Request Processing Denial of Service Vulnerability | |
| CVE-2018-15374 | Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability | |
| CVE-2018-15377 | Cisco IOS and IOS XE Software Plug and Play Agent Memory Leak Vulnerability | |
| CVE-2018-15376 | Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M | |
| CVE-2018-15375 | Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M | |
| CVE-2018-15379 | Cisco Prime Infrastructure Arbitrary File Upload and Command Execution Vulnerability | |
| CVE-2018-15373 | Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability |
Showing top 20 of 110 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco IOS Software
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Cisco IOS Software Catalyst 6500 Series 802.1x Authenticatio - CVE-2019-1751
Cisco IOS Software NAT64 Denial of Service Vulnerability - CVE-2018-0466
Cisco IOS and IOS XE Software OSPFv3 Denial of Service Vulne - CVE-2018-0467
Cisco IOS and IOS XE Software IPv6 Hop-by-Hop Options Denial - CVE-2018-0473
Cisco IOS Software Precision Time Protocol Denial of Service
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2018-15369
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