CVE-2019-1681— Cisco Network Convergence System 1000 Series TFTP Directory Traversal Vulnerability
Quick assessment
Affected
Cisco Cisco Network Convergence System 1000 Series
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Network Convergence System 1000 Series是美国思科（Cisco）公司的一款1000系列路由器。IOS XR Software是运行在其中的一套模块化、分布式的网络操作系统。 Cisco Network Convergence System 1000 Series中的IOS XR Software 6.5.2之前版本存在信息泄露漏洞，该漏洞源于程序没有正确地过滤TFTP请求中用户提交的输入。在TFTP服务被启用时，攻击者可通过向目标设备发送恶意的请求利用该漏洞
Possible ATT&CK Techniques 3 AI
T1210 · Exploitation of Remote Services T1597.001 · Threat Intel Vendors T1039 · Data from Network Shared Drive
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I. Basic Information for CVE-2019-1681
Vulnerability Information
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Vulnerability Title
Cisco Network Convergence System 1000 Series TFTP Directory Traversal Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the TFTP service of Cisco Network Convergence System 1000 Series software could allow an unauthenticated, remote attacker to retrieve arbitrary files from the targeted device, possibly resulting in information disclosure. The vulnerability is due to improper validation of user-supplied input within TFTP requests processed by the affected software. An attacker could exploit this vulnerability by using directory traversal techniques in malicious requests sent to the TFTP service on a targeted device. An exploit could allow the attacker to retrieve arbitrary files from the targeted device, resulting in the disclosure of sensitive information. This vulnerability affects Cisco IOS XR Software releases prior to Release 6.5.2 for Cisco Network Convergence System 1000 Series devices when the TFTP service is enabled.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Network Convergence System 1000 Series IOS XR Software 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Network Convergence System 1000 Series是美国思科（Cisco）公司的一款1000系列路由器。IOS XR Software是运行在其中的一套模块化、分布式的网络操作系统。 Cisco Network Convergence System 1000 Series中的IOS XR Software 6.5.2之前版本存在信息泄露漏洞，该漏洞源于程序没有正确地过滤TFTP请求中用户提交的输入。在TFTP服务被启用时，攻击者可通过向目标设备发送恶意的请求利用该漏洞
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 Network Convergence System 1000 Series | unspecified ~ 6.5.2 | - |
|
II. Public POCs for CVE-2019-1681
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-1681 (2)
-
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-ncs vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2019-02-21 · 12 CVEs total
| CVE-2019-1659 | Cisco Prime Infrastructure Certificate Validation Vulnerability | |
| CVE-2019-1662 | Cisco Prime Collaboration Assurance Software Unauthenticated Access Vulnerability | |
| CVE-2019-1664 | Cisco HyperFlex Software Unauthenticated Root Access Vulnerability | |
| CVE-2019-1665 | Cisco Hyperflex Stored Cross-Site Scripting Vulnerability | |
| CVE-2019-1666 | Cisco HyperFlex Unauthenticated Statistics Retrieval Vulnerability | |
| CVE-2019-1667 | Cisco HyperFlex Arbitrary Statistics Write Vulnerability | |
| CVE-2019-1684 | Cisco IP Phone 7800 and 8800 Series Cisco Discovery Protocol and Link Layer Discovery Prot | |
| CVE-2019-1685 | Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability | |
| CVE-2019-1691 | Cisco Firepower Threat Defense Software SSL or TLS Denial of Service Vulnerability | |
| CVE-2019-1698 | Cisco IoT Field Network Director XML External Entity Vulnerability | |
| CVE-2019-1700 | Cisco Firepower 9000 Series Firepower 2-Port 100G Double-Width Network Module Queue Wedge |
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V. Comments for CVE-2019-1681
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