Successful exploitation of this vulnerability could allow an attacker to disclose sensitive information or steal the unsuspecting user’s session.
The following products from Siemens are affected:
3.2.1 IMPROPER INPUT VALIDATION CWE-20
The IEEE 802.11 specifications through 802.11ax allow physically proximate attackers to intercept (possibly cleartext) target-destined frames by spoofing a target’s MAC address, sending Power Save frames to the access point, and then sending other frames to the access point (e.g., authentication frames or re-association frames) to remove the target’s original security context. This interception occurs because the specifications do not require an access point to purge its’ transmit queue before removing a client’s pairwise encryption key.
CVE-2022-47522 has been assigned to this vulnerability. A CVSS v3 base score of 8.4 has been assigned. the CVSS vector string is (CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).
Siemens reported this vulnerability to CISA.
Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:
As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to their Operational Guidelines for Industrial Security and following recommendations in the product manuals.
Additional information on industrial security by Siemens can be found on the Siemens Industrial Security website.
For further inquiries on security vulnerabilities in Siemens products, visit Siemens ProductCERT.
For more information, see the associated Siemens security advisory SSA-516174 in HTML and CSAF.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code or crash the application.
The following Siemens products are affected:
3.2.1 NULL POINTER DEREFERENCE CWE-476
STEPTools v18SP1 ifcmesh library (v18.1) is affected due to a null pointer dereference, which could allow an attacker to deny application usage when reading a specially constructed file, resulting in an application crash.
CVE-2023-0973 has been assigned to this vulnerability. A CVSS v3 base score of 2.2 has been assigned; the CVSS vector string is (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L).
3.2.2 OUT-OF-BOUNDS READ CWE-125
Affected applications contain an out-of-bounds read past the end of an allocated buffer while parsing a specially crafted OBJ file. This vulnerability could allow an attacker to disclose sensitive information.
CVE-2023-30985 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been assigned; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).
3.2.3 IMPROPER RESTRICTION OF OPERATIONS WITHIN THE BOUNDS OF A MEMORY BUFFER CWE-119
Affected applications contain a memory corruption vulnerability while parsing specially crafted STP files. This could allow an attacker to execute code in the context of the current process.
CVE-2023-30986 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Trend Micro Zero Day Initiative reported these vulnerabilities to Siemens.
Siemens identified the following specific workarounds and mitigations users can apply to reduce risk:
For further inquiries on security vulnerabilities in Siemens products, users should contact Siemens.
As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security and following recommendations in the product manuals.
Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage.
For more information, see the associated Siemens security advisory SSA-932528 in HTML and CSAF.
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
These vulnerabilities are not exploitable remotely.
Spring has officially sprung throughout the U.S., and the country is finally green. A lot of those plants are great, but some are invasive. They’re taking up root, and taking up space that should go to our native plants.
The Korean National Police Agency (KNPA) warns that a North Korea-linked APT group had breached the Seoul National University Hospital (SNUH). The Korean National Police Agency (KNPA) revealed that a North Korea-linked APT group has breached one of the largest hospitals in the country, the Seoul National University Hospital (SNUH). The security breach took place […]
The post North Korea-linked APT breached the Seoul National University Hospital appeared first on Security Affairs.
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