| CVE ID | CVE-2021-23138 |
| CVSS SCORE | 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| AFFECTED VENDORS |
WECON |
| AFFECTED PRODUCTS |
LeviStudioU |
| VULNERABILITY DETAILS |
This vulnerability allows remote attackers to execute arbitrary code on affected installations of WECON LeviStudioU. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of Add tags within the file SourAddrToDestAddrInfo_UnBuild.xml. When parsing the PLCAddr1 attribute, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. |
| ADDITIONAL DETAILS |
WECON has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03 |
| DISCLOSURE TIMELINE |
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| CREDIT | Natnael Samson (@NattiSamson) |
