CVE-2019-18634 PoC — Sudo 缓冲区错误漏洞

Source

https://github.com/edsonjt81/sudo-cve-2019-18634

Associated Vulnerability

Title: Sudo 缓冲区错误漏洞 (CVE-2019-18634)
Description:In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.

Readme

# CVE-2019-18634

https://www.sudo.ws/alerts/pwfeedback.html

https://nvd.nist.gov/vuln/detail/CVE-2019-18634

Credit to Joe Vennix from Apple Information Security for finding the bug.

File Snapshot

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