CVE-2021-35395
Quick assessment
Affected
n/a n/a
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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。
Public Exploits 1
Nuclei · 1
CVE-2021-35395.yaml [template]
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 3 AI
T1210 · Exploitation of Remote Services T1110.004 · Credential Stuffing T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-35395
Vulnerability Information
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Vulnerability Title
N/A
Source: 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.
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
Realtek Jungle SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2021-35395
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 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 Details |
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Security Blog Posts for CVE-2021-35395 (1)
Other References for CVE-2021-35395 (2)
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https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en x_refsource_MISC
Same Patch Batch · n/a · 2021-08-16 · 39 CVEs total
| CVE-2021-23422 | 7.8 HIGH | Arbitrary Code Injection |
| CVE-2021-23423 | 5.5 MEDIUM | Directory Traversal |
| CVE-2021-35393 | Realtek Jungle SDK 缓冲区错误漏洞 | |
| CVE-2021-38757 | Hospital Management System 跨站脚本漏洞 | |
| CVE-2021-38756 | Hospital Management System 跨站脚本漏洞 | |
| CVE-2021-38755 | Hospital Management System 安全漏洞 | |
| CVE-2021-38754 | HealthNode Hospital Management System SQL注入漏洞 | |
| CVE-2021-38753 | Simple Image Gallery Web App 代码问题漏洞 | |
| CVE-2021-38752 | Online-Catering-Reservation 跨站脚本漏洞 | |
| CVE-2021-38751 | ExponentCMS安全漏洞 | |
| CVE-2021-38607 | Crocoblock JetEngine 跨站脚本漏洞 | |
| CVE-2021-35392 | Realtek Jungle SDK 缓冲区错误漏洞 | |
| CVE-2021-38758 | Online Catering Reservation System 输入验证错误漏洞 | |
| CVE-2021-35394 | Realtek Jungle SDK 安全漏洞 | |
| CVE-2021-38712 | OneNav 安全漏洞 | |
| CVE-2021-38713 | imgurl跨站脚本漏洞 | |
| CVE-2021-38711 | gitit 安全漏洞 | |
| CVE-2021-38708 | Ocproducts Composr CMS 跨站脚本漏洞 | |
| CVE-2021-38709 | Ocproducts Composr CMS 跨站脚本漏洞 | |
| CVE-2021-22933 | Pulse Secure Pulse Connect Secure 路径遍历漏洞 |
Showing top 20 of 39 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-35395
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