CVE-2022-43972— Null pointer dereference in Linksys WRT54GL
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I. Basic Information for CVE-2022-43972
Vulnerability Information
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Vulnerability Title
Null pointer dereference in Linksys WRT54GL
Source: NVD (National Vulnerability Database)
Vulnerability Description
A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linksys WRT54GL 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linksys WRT54GL是美国Linksys公司的一款无线路由器。 Linksys WRT54GL Wireless-G Broadband Router 4.30.18.006版本及之前版本存在安全漏洞，该漏洞源于存在空指针取消引用漏洞。攻击者利用该漏洞通过调用AddPortMapping操作的恶意POST请求触发。
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 |
|---|---|---|---|---|
| Linksys | WRT54GL Wireless-G Broadband Router | Firmware ~ 4.30.18.006 | - |
II. Public POCs for CVE-2022-43972
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|---|
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Same Patch Batch · Linksys · 2023-01-09 · 4 CVEs total
| CVE-2022-43970 | 7.2 HIGH | Buffer overflow in Linksys WRT54GL |
| CVE-2022-43971 | 7.2 HIGH | Arbitrary code execution in Linksys WUMC710 |
| CVE-2022-43973 | 7.2 HIGH | Arbitrary code execution in Linksys WRT54GL |
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Same weakness: CWE-476
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V. Comments for CVE-2022-43972
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