CVE•Published 2021-01-26•2 articles on news•6 live references•NVD data
CVE-2021-3156
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
7.8
HIGH
EPSS percentile
100
Exploit Prediction Scoring System · top 0% of all CVEs
Description
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
Timeline
Published 2021-01-26
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag4 hosts
vuln:CVE-2021-3156Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Beyondtrust Privilege Management For Mac"All exposed Beyondtrust Privilege Management For Mac instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Privilege Management For Mac"HTTP body or banner mentions "Privilege Management For Mac" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-3156Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-3156Censys host search filtered to this CVE id.
grep.app
CVE-2021-3156Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-3156GitHub code search for direct mentions.
Google dork
"CVE-2021-3156" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (7)
CVE-2021-31567 repos
Mr-xn/Penetration_Testing_POCHTML
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypas…
Threekiii/Awesome-POCJava
一个漏洞 PoC 知识库。A knowledge base for vulnerability PoCs(Proof of Concept), with 1k+ vulnerabilities.
0xsyr0/OSCPPowerShell
OSCP Cheat Sheet
taielab/awesome-hacking-listsunknown
A curated collection of top-tier penetration testing tools and productivity utilities across multiple domains. Join us to explore, contribute, and enhance your hacking toolkit!
bsauce/kernel-exploit-factoryC
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
SexyBeast233/SecBooksHTML
安全类各家文库大乱斗
nu11secur1ty/Windows10ExploitsHTML
Microsoft » Windows 10 : Security Vulnerabilities