CVE-2022-0982— Buffer Overflow via crafted 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，该漏洞源于用户输入 cmdline_len 被复制到固定缓冲区 b->buf 中没有任何绑定检查。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-0982
Vulnerability Information
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Vulnerability Title
Buffer Overflow via crafted client request in Accel-PPP v1.12
Source: CVE Program / CVE List V5
Vulnerability Description
The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerability, whereby user input cmdline_len is copied into a fixed buffer b->buf without any bound checks. If the server connects with a malicious client, crafted client requests can remotely trigger this vulnerability.
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 缓冲区错误漏洞
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，该漏洞源于用户输入 cmdline_len 被复制到固定缓冲区 b->buf 中没有任何绑定检查。
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-2022-0982
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2022-0982 (1)
-
https://github.com/xebd/accel-ppp/issues/164 x_refsource_MISC
IV. Related Vulnerabilities
Same product: Accel-PPP