CISA Known Exploited Vulnerabilities (KEV)

CVE-2023-36563 - Microsoft WordPad Information Disclosure Vulnerability -

Action Due Oct 31, 2023 Target Vendor : Microsoft

Description : Microsoft WordPad contains an unspecified vulnerability that allows for information disclosure.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-36563; https://nvd.nist.gov/vuln/detail/CVE-2023-36563

CVE-2023-44487 - HTTP/2 Rapid Reset Attack Vulnerability -

Action Due Oct 31, 2023 Target Vendor : IETF

Description : HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-44487

CVE-2023-21608 - Adobe Acrobat and Reader Use-After-Free Vulnerability -

Action Due Oct 31, 2023 Target Vendor : Adobe

Description : Adobe Acrobat and Reader contains a use-after-free vulnerability that allows for code execution in the context of the current user.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://helpx.adobe.com/security/products/acrobat/apsb23-01.html; https://nvd.nist.gov/vuln/detail/CVE-2023-21608

CVE-2023-40044 - Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability -

Action Due Oct 26, 2023 Target Vendor : Progress

Description : Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Known

Notes : https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023; https://nvd.nist.gov/vuln/detail/CVE-2023-40044

CVE-2023-42824 - Apple iOS and iPadOS Kernel Privilege Escalation Vulnerability -

Action Due Oct 26, 2023 Target Vendor : Apple

Description : Apple iOS and iPadOS contain an unspecified vulnerability that allows for local privilege escalation.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213961; https://nvd.nist.gov/vuln/detail/CVE-2023-42824

CVE-2023-22515 - Atlassian Confluence Data Center and Server Broken Access Control Vulnerability -

Action Due Oct 13, 2023 Target Vendor : Atlassian

Description : Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.

Known To Be Used in Ransomware Campaigns? : Known

Notes : https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html; https://nvd.nist.gov/vuln/detail/CVE-2023-22515

CVE-2023-42793 - JetBrains TeamCity Authentication Bypass Vulnerability -

Action Due Oct 25, 2023 Target Vendor : JetBrains

Description : JetBrains TeamCity contains an authentication bypass vulnerability that allows for remote code execution on TeamCity Server.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Known

Notes : https://blog.jetbrains.com/teamcity/2023/09/critical-security-issue-affecting-teamcity-on-premises-update-to-2023-05-4-now/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-42793

CVE-2023-28229 - Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability -

Action Due Oct 25, 2023 Target Vendor : Microsoft

Description : Microsoft Windows Cryptographic Next Generation (CNG) Key Isolation Service contains an unspecified vulnerability that allows an attacker to gain specific limited SYSTEM privileges.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28229; https://nvd.nist.gov/vuln/detail/CVE-2023-28229

CVE-2023-4211 - Arm Mali GPU Kernel Driver Use-After-Free Vulnerability -

Action Due Oct 24, 2023 Target Vendor : Arm

Description : Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that allows a local, non-privileged user to make improper GPU memory processing operations to gain access to already freed memory.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities; https://nvd.nist.gov/vuln/detail/CVE-2023-4211

CVE-2023-5217 - Google Chromium libvpx Heap Buffer Overflow Vulnerability -

Action Due Oct 23, 2023 Target Vendor : Google

Description : Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html; https://nvd.nist.gov/vuln/detail/CVE-2023-5217

CVE-2018-14667 - Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability -

Action Due Oct 19, 2023 Target Vendor : Red Hat

Description : Red Hat JBoss RichFaces Framework contains an expression language injection vulnerability via the UserResource resource. A remote, unauthenticated attacker could exploit this vulnerability to execute malicious code using a chain of Java serialized objects via org.ajax4jsf.resource.UserResource$UriData.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14667; https://nvd.nist.gov/vuln/detail/CVE-2018-14667

CVE-2023-41991 - Apple Multiple Products Improper Certificate Validation Vulnerability -

Action Due Oct 16, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931 ; https://nvd.nist.gov/vuln/detail/CVE-2023-41991

CVE-2023-41992 - Apple Multiple Products Kernel Privilege Escalation Vulnerability -

Action Due Oct 16, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, and watchOS contain an unspecified vulnerability that allows for local privilege escalation.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931, https://support.apple.com/en-us/HT213932; https://nvd.nist.gov/vuln/detail/CVE-2023-41992

CVE-2023-41993 - Apple Multiple Products WebKit Code Execution Vulnerability -

Action Due Oct 16, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213930; https://nvd.nist.gov/vuln/detail/CVE-2023-41993

CVE-2023-41179 - Trend Micro Apex One and Worry-Free Business Security Remote Code Execution Vulnerability -

Action Due Oct 12, 2023 Target Vendor : Trend Micro

Description : Trend Micro Apex One and Worry-Free Business Security contain an unspecified vulnerability in the third-party anti-virus uninstaller that could allow an attacker to manipulate the module to conduct remote code execution. An attacker must first obtain administrative console access on the target system in order to exploit this vulnerability.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://success.trendmicro.com/dcx/s/solution/000294994?language=en_US ; https://nvd.nist.gov/vuln/detail/CVE-2023-41179

CVE-2023-28434 - MinIO Security Feature Bypass Vulnerability -

Action Due Oct 10, 2023 Target Vendor : MinIO

Description : MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c; https://nvd.nist.gov/vuln/detail/CVE-2023-28434

CVE-2022-22265 - Samsung Mobile Devices Use-After-Free Vulnerability -

Action Due Oct 09, 2023 Target Vendor : Samsung

Description : Samsung devices with selected Exynos chipsets contain a use-after-free vulnerability that allows malicious memory write and code execution.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://security.samsungmobile.com/securityUpdate.smsb?year=2022&month=1; https://nvd.nist.gov/vuln/detail/CVE-2022-22265

CVE-2014-8361 - Realtek SDK Improper Input Validation Vulnerability -

Action Due Oct 09, 2023 Target Vendor : Realtek

Description : Realtek SDK contains an improper input validation vulnerability in the miniigd SOAP service that allows remote attackers to execute malicious code via a crafted NewInternalClient request.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://web.archive.org/web/20150831100501/http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10055; https://nvd.nist.gov/vuln/detail/CVE-2014-8361

CVE-2021-3129 - Laravel Ignition File Upload Vulnerability -

Action Due Oct 09, 2023 Target Vendor : Laravel

Description : Laravel Ignition contains a file upload vulnerability that allows unauthenticated remote attackers to execute malicious code due to insecure usage of file_get_contents() and file_put_contents().

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Known

Notes : https://github.com/facade/ignition/releases/tag/2.5.2; https://nvd.nist.gov/vuln/detail/CVE-2021-3129

CVE-2017-6884 - Zyxel EMG2926 Routers Command Injection Vulnerability -

Action Due Oct 09, 2023 Target Vendor : Zyxel

Description : Zyxel EMG2926 routers contain a command injection vulnerability located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute malicious commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

Action : Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerability-in-emg2926-q10a-ethernet-cpe, https://www.zyxelguard.com/Zyxel-EOL.asp; https://nvd.nist.gov/vuln/detail/CVE-2017-6884