Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-28388 |
CWE-ID | CWE-330 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Nucleus NET Server applications / Other server solutions Nucleus ReadyStart Server applications / Other server solutions |
Vendor | Siemens |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU50601
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-28388
CWE-ID:
CWE-330 - Use of Insufficiently Random Values
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the ISN generator relies on a combination of values that can be inferred from a network capture. A remote attacker can interfere with traffic, spoof the connection and gain access to sensitive information.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNucleus NET: 4.3
Nucleus ReadyStart: before 2012.12
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-362164.pdf
http://www.forescout.com/company/blog/numberjack-forescout-research-labs-finds-nine-isn-generation-vulnerabilities-affecting-tcpip-stacks/
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.