Man-in-the-middle attack in HP Business Service Automation Essentials (BSAE)

1) Man-in-the-middle attack

EUVDB-ID: #VU86

Risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2015-4000

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to decrypt TLS connections in certain situations.

The vulnerability exists due to boundary error when parsing HTTP requests. A remote unauthenticated attacker can conduct a man-in-the-middle attack that can lead to the target system to downgrade the Diffie-Hellman algorithm to 512-bit export-grade cryptography.

Successful exploitation of this vulnerability may result in modification of authentication information

Mitigation

Install update from vendor's website.

Vulnerable software versions

HP Business Service Automation Essentials: 9.10 - 9.20

CPE2.3

• cpe:2.3:a:hewlett_packard_enterprise_development_lp:hp_business_service_automation_essentials:9.10:*:*:*:*:*:*:*
• cpe:2.3:a:hewlett_packard_enterprise_development_lp:hp_business_service_automation_essentials:9.11:*:*:*:*:*:*:*
• cpe:2.3:a:hewlett_packard_enterprise_development_lp:hp_business_service_automation_essentials:9.20:*:*:*:*:*:*:*

External links

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=emr_na-c04718196

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. However, a fully functional exploit for this vulnerability is available.