Multiple vulnerabilities in Siemens SIMATIC TIM 1531 IRC
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-8169 CVE-2020-8286 |
| CWE-ID | CWE-200 CWE-299 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
SIMATIC TIM 1531 IRC Hardware solutions / Firmware |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU29292
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-8169
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to cURL sends a DNS query with the provided credentials for HTTP authentication when processing redirects. A remote attacker that controls a DNS server can gain access to HTTP authenticated credentials.
Install update from vendor's website.
Vulnerable software versionsSIMATIC TIM 1531 IRC: before 2.2
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-159-10
http://cert-portal.siemens.com/productcert/txt/ssa-200951.txt
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.
2) Improper Check for Certificate Revocation
EUVDB-ID: #VU48895
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-2020-8286
CWE-ID:
CWE-299 - Improper Check for Certificate Revocation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to incorrectly implemented checks for OCSP stapling. A remote attacker can provide a fraudulent OCSP response that would appear fine, instead of the real one.
MitigationInstall update from vendor's website.
Vulnerable software versionsSIMATIC TIM 1531 IRC: before 2.2
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-159-10
http://cert-portal.siemens.com/productcert/txt/ssa-200951.txt
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.
