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 |
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
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
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
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-21-159-10
https://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
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
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
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-21-159-10
https://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.
