Incorrect ACL get/set allowed on symlink path in HPE HP-UX running CIFS Server (Samba)

1) Incorrect ACL get/set allowed on symlink path

EUVDB-ID: #VU242

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-7560

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

Exploit availability: No

Description

The vulnerability allows a remote attacker to launch a symlink attack.

The vulnerability exists in Samba. A remote authenticated attacker can overwrite access control lists on the directory by creating a symbolic link to a file or directory using SMB1 UNIX extensions and then issuing a non-UNIX SMB1.

Successful exploitation of this vulnerability may result in a symlink attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

HP-UX Common Internet File System (CIFS): before B.04.05.03.00

CPE2.3

• cpe:2.3:a:hpe:hp-ux_common_internet_file_system_cifs:*:*:*:*:*:*:*:*

External links

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=emr_na-c05121842

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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