Denial of service in Siemens SENTRON PAC3200, SENTRON PAC4200 and SIRIUS 3RW5



Published: 2020-12-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-13988
CWE-ID CWE-190
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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SENTRON PAC3200
Hardware solutions / Other hardware appliances

SENTRON PAC4200
Hardware solutions / Other hardware appliances

SIRIUS 3RW5 communication module Modbus TCP
Client/Desktop applications / Software for archiving

Vendor Siemens

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU48916

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13988

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow. A remote attacker on the local network can send a specially crafted IP packet, trigger integer overflow and cause a denial of service on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SENTRON PAC3200: before 2.4.5

SENTRON PAC4200: before 2.0.1

SIRIUS 3RW5 communication module Modbus TCP: All versions

External links

http://ics-cert.us-cert.gov/advisories/icsa-20-343-05


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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