CVE-2020-17440
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Contiki是一套用于IoT（物联网）设备的开源跨平台操作系统。 Contiki 3.0 存在安全漏洞，该漏洞源于解析传入的DNS数据包时，不会检查域名是否以空值结尾。这使攻击者可以通过精心制作的DNS响应来破坏内存。。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-17440
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that parses incoming DNS packets does not validate that domain names present in the DNS responses have '\0' termination. This results in errors when calculating the offset of the pointer that jumps over domain name bytes in DNS response packets when a name lacks this termination, and eventually leads to dereferencing the pointer at an invalid/arbitrary address, within newdata() and parse_name() in resolv.c.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Contiki 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Contiki是一套用于IoT（物联网）设备的开源跨平台操作系统。 Contiki 3.0 存在安全漏洞，该漏洞源于解析传入的DNS数据包时，不会检查域名是否以空值结尾。这使攻击者可以通过精心制作的DNS响应来破坏内存。。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2020-17440
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-17440 (2)
-
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 x_refsource_MISC
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https://www.kb.cert.org/vuls/id/815128 x_refsource_MISC
Same Patch Batch · n/a · 2020-12-11 · 94 CVEs total
| CVE-2020-28439 | 9.8 CRITICAL | Command Injection |
| CVE-2020-28440 | 9.8 CRITICAL | Command Injection |
| CVE-2020-7791 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2020-7793 | 7.5 HIGH | Regular Expression Denial of Service (ReDoS) |
| CVE-2020-7792 | 7.5 HIGH | Prototype Pollution |
| CVE-2020-7788 | 7.3 HIGH | Prototype Pollution |
| CVE-2020-7789 | 5.6 MEDIUM | Command Injection |
| CVE-2020-7790 | 5.3 MEDIUM | Arbitrary File Read |
| CVE-2020-5949 | F5 BIG-IP 安全漏洞 | |
| CVE-2020-13986 | uIP-Contiki-OS 输入验证错误漏洞 | |
| CVE-2020-15376 | Brocade Fabric OS 安全漏洞 | |
| CVE-2020-27730 | F5 NGINX Controller 路径遍历漏洞 | |
| CVE-2020-29455 | SmartyStreets liveAddressPlugin.js 跨站脚本漏洞 | |
| CVE-2020-19165 | PHPSHE SQL注入漏洞 | |
| CVE-2020-13988 | 多款Siemens产品输入验证错误漏洞 | |
| CVE-2020-35175 | Frappe Framework 安全漏洞 | |
| CVE-2020-17437 | Multiple Embedded TCP/IP 缓冲区错误漏洞 | |
| CVE-2020-17438 | Contiki 缓冲区错误漏洞 | |
| CVE-2020-17439 | Contiki 输入验证错误漏洞 | |
| CVE-2020-17441 | picoTCP 缓冲区错误漏洞 |
Showing top 20 of 94 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2020-17440
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