Multiple vulnerabilities in Siemens SITOP UPS1600



Published: 2024-06-13
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
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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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SITOP 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

CPE2.3
External links

http://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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SITOP 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

CPE2.3
External links

http://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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SITOP 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

CPE2.3
External links

http://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.



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