The version of ruby installed on the remote host is prior to 2.0.0.648-36. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2486 advisory.

    A flaw was discovered in Ruby in the way certain functions handled strings containing NULL bytes.
    Specifically, the built-in methods File.fnmatch and its alias File.fnmatch? did not properly handle path     patterns containing the NULL byte. A remote attacker could exploit this flaw to make a Ruby script access     unexpected files and to bypass intended file system access restrictions. (CVE-2019-15845)

    WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a     regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server     that uses DigestAuth to the Internet or a untrusted network. (CVE-2019-16201)

    Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a     program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to     insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this     issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not     address an isolated CR or an isolated LF. (CVE-2019-16254)

    Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first     argument (aka the command argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An     attacker can exploit this to call an arbitrary Ruby method. (CVE-2019-16255)

    CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects     the CGI gem through 0.3.0 for Ruby. (CVE-2021-41819)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Amazon Linux 2 : ruby (ALAS-2024-2486)

high Nessus Plugin ID 191511

Version 1.2

Version 1.1

Version 1.0

Version 1.0

Version 1.2 Dec 12, 2024, 9:55 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202412120955
Version 1.1 Mar 5, 2024, 5:50 PM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202403051750
Version 1.0 Mar 5, 2024, 7:01 AM New Plugin Feed: 202403050701
Version 1.0 Mar 5, 2024, 2:40 PM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202403051440