#VU10777 XXE attack in Shibboleth Service Provider - CVE-2018-0489

Vulnerability identifier: #VU10777

Vulnerability risk: Low

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

CVE-ID: CVE-2018-0489

CWE-ID: CWE-611

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Shibboleth Service Provider
Server applications / Directory software, identity management

Vendor: Shibboleth

Description
The vulnerability allows a remote attacker to perform XXE attack.

The vulnerability exists due to an implementation flaw in the XMLTooling library. A remote attacker can add or modify specially crafted XML data, modify digital signatures of user attribute data and impersonate a user or obtain potentially sensitive information.

Mitigation
Update to version 2.6.1.4.

Vulnerable software versions

Shibboleth Service Provider: 2.5.0 - 2.6.0

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External links
https://shibboleth.net/community/advisories/secadv_20180227.txt

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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.