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CVE-2023-27333— TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability

Quick assessment

Affected
TP-Link Archer AX21
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.

TP-LINK Archer AX21是中国普联（TP-LINK）公司的一款无线路由器。 TP-LINK Archer AX21 存在安全漏洞，该漏洞源于tdpServer 日志记录中存在基于堆栈的缓冲区溢出，允许网络相邻攻击者在受影响的 TP-Link Archer A54 路由器上执行任意代码。

AI Predicted 7.8 Difficulty: Easy EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-27333

Vulnerability Information
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Vulnerability Title
TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of command 0x422 provided to the tmpServer service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19905.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
TP-LINK Archer AX21 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK Archer AX21是中国普联（TP-LINK）公司的一款无线路由器。 TP-LINK Archer AX21 存在安全漏洞，该漏洞源于tdpServer 日志记录中存在基于堆栈的缓冲区溢出，允许网络相邻攻击者在受影响的 TP-Link Archer A54 路由器上执行任意代码。
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
TP-Link Archer AX21 1.1.3 Build 20221125 -

II. Public POCs for CVE-2023-27333

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III. Intelligence Information for CVE-2023-27333

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Vendor Advisories for CVE-2023-27333 (1)

Same Patch Batch · TP-Link · 2024-05-03 · 11 CVEs total

CVE-2023-50224 6.5 MEDIUM TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability
CVE-2023-39471 TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability
CVE-2023-35717 TP-Link Tapo C210 Password Recovery Authentication Bypass Vulnerability
CVE-2023-41184 TP-Link Tapo C210 ActiveCells Stack-based Buffer Overflow Remote Code Execution Vulnerabil
CVE-2023-44448 TP-Link Archer A54 libcmm.so dm_fillObjByStr Stack-based Buffer Overflow Remote Code Execu
CVE-2023-44447 TP-Link TL-WR902AC loginFs Improper Authentication Information Disclosure Vulnerability
CVE-2023-27332 TP-Link Archer AX21 tdpServer Logging Stack-based Buffer Overflow Remote Code Execution Vu
CVE-2023-27346 TP-Link AX1800 Firmware Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerab
CVE-2023-27359 TP-Link AX1800 hotplugd Firewall Rule Race Condition Vulnerability
CVE-2023-50225 TP-Link TL-WR902AC dm_fillObjByStr Stack-based Buffer Overflow Remote Code Execution Vulne

IV. Related Vulnerabilities

Same product: Archer AX21
Same vendor: TP-Link
Same weakness: CWE-121

V. Comments for CVE-2023-27333

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