CVE-2022-24704— Buffer Overflow via Crafted IPv6 Addr Attribute Type Client Request in Accel-PPP v1.12
Quick assessment
Affected
https://accel-ppp.org/ Accel-PPP
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.
Accel-Ppp是一个适用于 Linux 的高性能 Pptp/L2tp/Pppoe/Ipoe 服务器。 accel-ppp存在安全漏洞，该漏洞源于accel-pppd radius packet.c中的rad packet recv函数存在缓冲区溢出漏洞，如果客户端连接到服务器端并发送了较大的radius报文，则会触发缓冲区溢出漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-24704
Vulnerability Information
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Vulnerability Title
Buffer Overflow via Crafted IPv6 Addr Attribute Type Client Request in Accel-PPP v1.12
Source: CVE Program / CVE List V5
Vulnerability Description
The rad_packet_recv function in opt/src/accel-pppd/radius/packet.c suffers from a buffer overflow vulnerability, whereby user input len is copied into a fixed buffer &attr->val.integer without any bound checks. If the client connects to the server and sends a large radius packet, a buffer overflow vulnerability will be triggered.
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
accel-ppp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Accel-Ppp是一个适用于 Linux 的高性能 Pptp/L2tp/Pppoe/Ipoe 服务器。 accel-ppp存在安全漏洞，该漏洞源于accel-pppd radius packet.c中的rad packet recv函数存在缓冲区溢出漏洞，如果客户端连接到服务器端并发送了较大的radius报文，则会触发缓冲区溢出漏洞。
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 |
|---|---|---|---|---|
| https://accel-ppp.org/ | Accel-PPP | 1.12 ~ 1.12 | - |
|
II. Public POCs for CVE-2022-24704
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-24704 (1)
-
https://github.com/accel-ppp/accel-ppp/pull/35 x_refsource_MISC
IV. Related Vulnerabilities
Same product: Accel-PPP