CVE-2021-1612— Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability
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I. Basic Information for CVE-2021-1612
Vulnerability Information
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Vulnerability Title
Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to overwrite arbitrary files on the local system. This vulnerability is due to improper access controls on files within the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on an affected device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-61
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE SD-WAN Software 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE SD-WAN Software是美国思科（Cisco）公司的一款应用于Cisco IOS XE 网络操作系统的用于网络管理（软件定义网络）的软件。 Cisco IOS XE SD-WAN Software 存在安全漏洞，该漏洞源于对本地文件系统内的文件的访问控制不当造成的。攻击者可利用该漏洞在本地文件系统的特定位置放置符号链接来覆盖受影响设备上的任意文件。
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 XE SD-WAN Software | n/a | - |
II. Public POCs for CVE-2021-1612
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-GjR5pGOmvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-1612
Same Patch Batch · Cisco · 2021-09-23 · 33 CVEs total
| CVE-2021-34770 | 10.0 CRITICAL | Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Exe |
| CVE-2021-34727 | 9.8 CRITICAL | Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability |
| CVE-2021-1619 | 9.8 CRITICAL | Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability |
| CVE-2021-1624 | 8.6 HIGH | Cisco IOS XE Software Rate Limiting Network Address Translation Denial of Service Vulnerab |
| CVE-2021-1622 | 8.6 HIGH | Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Servi |
| CVE-2021-34768 | 8.6 HIGH | Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Servi |
| CVE-2021-34769 | 8.6 HIGH | Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Servi |
| CVE-2021-1615 | 8.6 HIGH | Cisco Embedded Wireless Controller Software for Catalyst Access Points Denial of Service V |
| CVE-2021-1611 | 8.6 HIGH | Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers EoGRE Denial of Servic |
| CVE-2021-1565 | 8.6 HIGH | Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Servi |
| CVE-2021-1419 | 7.8 HIGH | Cisco Access Points SSH Management Privilege Escalation Vulnerability |
| CVE-2021-1623 | 7.7 HIGH | Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Simple Network Managemen |
| CVE-2021-34699 | 7.7 HIGH | Cisco IOS and IOS XE Software TrustSec CLI Parser Denial of Service Vulnerability |
| CVE-2021-1620 | 7.7 HIGH | Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability |
| CVE-2021-34767 | 7.4 HIGH | Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers IPv6 Denial of Service |
| CVE-2021-1621 | 7.4 HIGH | Cisco IOS XE Software Interface Queue Wedge Denial of Service Vulnerability |
| CVE-2021-34740 | 7.4 HIGH | Cisco Aironet Access Points WLAN Control Protocol Packet Buffer Leak Denial of Service Vul |
| CVE-2021-34714 | 7.4 HIGH | Multiple Cisco Operating Systems Unidirectional Link Detection Denial of Service Vulnerabi |
| CVE-2021-34703 | 6.8 MEDIUM | Cisco IOS and IOS XE Software Link Layer Discovery Protocol Denial of Service Vulnerabilit |
| CVE-2021-34729 | 6.7 MEDIUM | Cisco IOS XE SD-WAN Software Command Injection Vulnerability |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco IOS XE SD-WAN Software
- CVE-2021-1529
Cisco IOS XE SD-WAN Software Command Injection Vulnerability - CVE-2021-34729
Cisco IOS XE SD-WAN Software Command Injection Vulnerability - CVE-2021-34727
Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability - CVE-2021-34725
Cisco IOS XE SD-WAN Software Command Injection Vulnerability - CVE-2021-34724
Cisco IOS XE SD-WAN Software Privilege Escalation Vulnerabil
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Same weakness: CWE-61
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V. Comments for CVE-2021-1612
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