Remote code execution in Hirschmann Automation and Control HiOS and HiSecOS Products



Published: 2020-04-06
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-6994
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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HiOS
Operating systems & Components / Operating system

HiSecOS
Operating systems & Components / Operating system

Vendor Belden Inc.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU26603

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-6994

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when parsing URL arguments. A remote attacker can send a pecially crafted HTTP request, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

This vulnerability affects the following devices using HiOS:

  • RSP, RSPE, RSPS, RSPL, MSP, EES, EES, EESX, GRS, OS, RED    

  • And devices using HiSecOS:

  • EAGLE20/30
  • Mitigation

    Install updates from vendor's website.

    Vulnerable software versions

    HiOS: 07.0.02

    HiSecOS: 03.2.00


    CPE2.3 External links

    http://www.us-cert.gov/ics/advisories/icsa-20-091-01
    http://www.belden.com/hubfs/support/security/bulletins/Belden_Security_Bulletin_BSECV-2020-01_1v2_FINAL.pdf

    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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