Multiple vulnerabilities in Siemens SITOP UPS1600
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-26552 CVE-2023-26553 CVE-2023-26554 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
SITOP UPS1600 EX 20 A Ethernet PROFINET Hardware solutions / Firmware SITOP UPS1600 40 A Ethernet/ PROFINET Hardware solutions / Firmware SITOP UPS1600 20 A Ethernet/ PROFINET Hardware solutions / Firmware SITOP UPS1600 10 A Ethernet/ PROFINET Hardware solutions / Firmware |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Out-of-bounds write
EUVDB-ID: #VU75999
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-26552
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within mstolfp in libntp/mstolfp.c. A remote attacker with control over a malicious NTP server can trick the victim into connecting to it, trigger an out-of-bounds write and execute arbitrary code on the target system via the client ntpq process.
MitigationInstall update from vendor's website.
Vulnerable software versionsSITOP UPS1600 EX 20 A Ethernet PROFINET: before 2.5.4
SITOP UPS1600 40 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 20 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 10 A Ethernet/ PROFINET: before 2.5.4
CPE2.3http://cert-portal.siemens.com/productcert/txt/ssa-238730.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) Out-of-bounds write
EUVDB-ID: #VU76000
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-26553
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within mstolfp in libntp/mstolfp.c. A remote attacker with control over a malicious NTP server can trick the victim into connecting to it, trigger an out-of-bounds write and execute arbitrary code on the target system via the client ntpq process.
MitigationInstall update from vendor's website.
Vulnerable software versionsSITOP UPS1600 EX 20 A Ethernet PROFINET: before 2.5.4
SITOP UPS1600 40 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 20 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 10 A Ethernet/ PROFINET: before 2.5.4
CPE2.3http://cert-portal.siemens.com/productcert/txt/ssa-238730.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.
3) Out-of-bounds write
EUVDB-ID: #VU76001
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-26554
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within mstolfp in libntp/mstolfp.c. A remote attacker with control over a malicious NTP server can trick the victim into connecting to it, trigger an out-of-bounds write and execute arbitrary code on the target system via the client ntpq process.
MitigationInstall update from vendor's website.
Vulnerable software versionsSITOP UPS1600 EX 20 A Ethernet PROFINET: before 2.5.4
SITOP UPS1600 40 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 20 A Ethernet/ PROFINET: before 2.5.4
SITOP UPS1600 10 A Ethernet/ PROFINET: before 2.5.4
CPE2.3http://cert-portal.siemens.com/productcert/txt/ssa-238730.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.
