Multiple vulnerabilities in REXML gem



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-41123
CVE-2024-41946
CWE-ID CWE-20
CWE-776
Exploitation vector Network
Public exploit N/A
Vulnerable software
 REXML
Web applications / Modules and components for CMS

Vendor rubygems.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU95149

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-41123

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when parsing characters such as a whitespace character, >] and ]>. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

REXML: 3.1.8 - 3.3.2

CPE2.3 External links

https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41123/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) XML Entity Expansion

EUVDB-ID: #VU95148

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-41946

CWE-ID: CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation when parsing XML with SAX2 or pull parser API. A remote attacker can pass specially crafted XML data to the application and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

REXML: 3.1.8 - 3.3.2

CPE2.3 External links

https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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