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CVE-2023-50763

Medium

Description

A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.3), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.3), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of affected products, if configured to allow the import of PKCS12 containers, could end up in an infinite loop when processing incomplete certificate chains. This could allow an authenticated remote attacker to create a denial of service condition by importing specially crafted PKCS12 containers.

SeverityMedium
CVSS4.9
Exploit probability—
ProductSIMATIC CP 1542SP-1
PublishedJun 11, 2024
First seenJun 11, 2024
Weakness typeCWE-835CWE-835

How to fix

Update
  • Siemens SIMATIC CP 1542SP-1V2.3 or later
  • Siemens SIMATIC CP 1542SP-1 IRCV2.3 or later
  • Siemens SIMATIC CP 1543SP-1V2.3 or later
  • Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILV2.3 or later
  • Siemens SIPLUS ET 200SP CP 1543SP-1 ISECV2.3 or later
  • Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAILV2.3 or later
  • Siemens SIPLUS TIM 1531 IRCV2.4.8 or later
  • Siemens TIM 1531 IRCV2.4.8 or later

Affected products

ProductAffected versionsFixed in
Siemens SIMATIC CP 1542SP-1v < V2.3V2.3
Siemens SIMATIC CP 1542SP-1 IRCv < V2.3V2.3
Siemens SIMATIC CP 1543SP-1v < V2.3V2.3
Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILv < V2.3V2.3
Siemens SIPLUS ET 200SP CP 1543SP-1 ISECv < V2.3V2.3
Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAILv < V2.3V2.3
Siemens SIPLUS TIM 1531 IRCv < V2.4.8V2.4.8
Siemens TIM 1531 IRCv < V2.4.8V2.4.8

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