Security restrictions bypass in Dell EMC Isilon OneFS



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-6111
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 EMC Isilon OneFS
Client/Desktop applications / Software for system administration

Vendor Dell

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security restrictions bypass

EUVDB-ID: #VU16988

Risk: Low

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

CVE-ID: CVE-2019-6111

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to missing received object name validation by the scp client. A malicious SCP server can overwrite arbitrary files in the SCP client target directory. If a recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example overwrite .ssh/authorized_keys).


Mitigation

Install update from vendor's website.

Vulnerable software versions

EMC Isilon OneFS: before 8.2.1

CPE2.3 External links

https://www.dell.com/support/kbdoc/en-us/000153857/dsa-2019-142-dell-emc-isilon-onefs-security-update-for-openssh-vulnerability


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, proof of concept for this vulnerability is available.



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