Vulnerability identifier: #VU11443

Vulnerability risk: Low

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-2018-4841

CWE-ID: CWE-303

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TIM 1531 IRC
Hardware solutions / Firmware

Vendor: Siemens

Description
The vulnerability allows a remote attacker to bypass security restrictions.

The weakness exists due to incorrect implementation of authentication algorithm. A remote attacker with network access to Port 80/TCP or Port 443/TCP can bypass security restrictions and perform administrative operations on the device, cause DoS condition, gain read or write access to arbitrary data on the target system.

Mitigation
Update to version 1.1.

Vulnerable software versions

TIM 1531 IRC: All versions

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External links
http://support.industry.siemens.com/cs/document/109755374/sales-and-delivery-release-tim-1531-irc-v...

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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.