CVE-2021-35395— Realtek Jungle SDK 安全漏洞
一分钟漏洞结论
影响对象
n/a n/a
利用判断
已确认在野利用，应立即处置
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Realtek Jungle SDK是中国瑞昱半导体（Realtek）公司的提供了一个 HTTP Web 服务器，公开了一个管理接口，可用于配置接入点。 Realtek Jungle SDK 中存在安全漏洞，该漏洞源于产品的配置管理接口未能正确处理URL参数，攻击者可通过该漏洞导致缓冲区错误。以下产品及版本受到影响：Realtek Jungle SDK v2.x 至 v3.4.14B 版本。
公开利用映射 1
Nuclei · 1
CVE-2021-35395.yaml [template]
已观察到在野利用
cisa_kev · confirmed
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一、 漏洞 CVE-2021-35395 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
Realtek Jungle SDK version v2.x up to v3.4.14B provides an HTTP web server exposing a management interface that can be used to configure the access point. Two versions of this management interface exists: one based on Go-Ahead named webs and another based on Boa named boa. Both of them are affected by these vulnerabilities. Specifically, these binaries are vulnerable to the following issues: - stack buffer overflow in formRebootCheck due to unsafe copy of submit-url parameter - stack buffer overflow in formWsc due to unsafe copy of submit-url parameter - stack buffer overflow in formWlanMultipleAP due to unsafe copy of submit-url parameter - stack buffer overflow in formWlSiteSurvey due to unsafe copy of ifname parameter - stack buffer overflow in formStaticDHCP due to unsafe copy of hostname parameter - stack buffer overflow in formWsc due to unsafe copy of 'peerPin' parameter - arbitrary command execution in formSysCmd via the sysCmd parameter - arbitrary command injection in formWsc via the 'peerPin' parameter Exploitability of identified issues will differ based on what the end vendor/manufacturer did with the Realtek SDK webserver. Some vendors use it as-is, others add their own authentication implementation, some kept all the features from the server, some remove some of them, some inserted their own set of features. However, given that Realtek SDK implementation is full of insecure calls and that developers tends to re-use those examples in their custom code, any binary based on Realtek SDK webserver will probably contains its own set of issues on top of the Realtek ones (if kept). Successful exploitation of these issues allows remote attackers to gain arbitrary code execution on the device.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Realtek Jungle SDK 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Realtek Jungle SDK是中国瑞昱半导体（Realtek）公司的提供了一个 HTTP Web 服务器，公开了一个管理接口，可用于配置接入点。 Realtek Jungle SDK 中存在安全漏洞，该漏洞源于产品的配置管理接口未能正确处理URL参数，攻击者可通过该漏洞导致缓冲区错误。以下产品及版本受到影响：Realtek Jungle SDK v2.x 至 v3.4.14B 版本。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
二、漏洞 CVE-2021-35395 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | There is a command injection vulnerability on the "formWsc" page of the management interface. Successful exploitation of this vulnerability could lead to remote code execution and compromise of the affected system. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-35395.yaml | POC详情 |
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CVE-2021-35395 安全博客文章 (1)
CVE-2021-35395 其他参考 (2)
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https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en x_refsource_MISC
同批安全公告 · n/a · 2021-08-16 · 共 39 条
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| CVE-2021-22933 | Pulse Secure Pulse Connect Secure 路径遍历漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2021-35395
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