PT-2018-1543 · Microsoft · .Net Framework

Soroush Dalili · Published 2018-09-11 · Updated 2022-05-23 · CVE-2018-8421

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft .NET Framework versions 2.0 through 4.7.2

Description A remote code execution issue exists when Microsoft .NET Framework processes untrusted input. This could allow a remote attacker to execute arbitrary code using a specially crafted document or application. An attacker who successfully exploits this issue could take control of an affected system. To exploit the issue, an attacker would need to be able to upload a specially crafted file to a web application.

Recommendations For Microsoft .NET Framework versions 2.0 through 4.7.2, update to a version that includes the fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2018-01098

CVE-2018-8421

Affected Products

.Net Framework

References · 10

• 🔥 https://nccgroup.trust/uk/our-research/technical-advisory-bypassing-microsoft-xoml-workflows-protection-mechanisms-using-deserialisation-of-untrusted-data · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8421 · Security Note
• https://osv.dev/vulnerability/CVE-2018-8421 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-01098 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-8421 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8421 · Vendor Advisory
• http://securityfocus.com/bid/105222 · Note
• https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457918 · Note
• https://support.microsoft.com/help/4457044 · Note
• http://securitytracker.com/id/1041636 · Note