CISA Known Exploited Vulnerabilities (KEV)

CVE-2019-17621 - D-Link DIR-859 Router Command Execution Vulnerability -

Action Due Jul 20, 2023 Target Vendor : D-Link

Description : D-Link DIR-859 router contains a command execution vulnerability in the UPnP endpoint URL, /gena.cgi. Exploitation allows an unauthenticated remote attacker to execute system commands as root by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.

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

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147; https://nvd.nist.gov/vuln/detail/CVE-2019-17621

CVE-2023-32435 - Apple Multiple Products WebKit Memory Corruption Vulnerability -

Action Due Jul 14, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption 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 updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213670, https://support.apple.com/en-us/HT213671, https://support.apple.com/en-us/HT213676, https://support.apple.com/en-us/HT213811; https://nvd.nist.gov/vuln/detail/CVE-2023-32435

CVE-2023-32439 - Apple Multiple Products WebKit Type Confusion Vulnerability -

Action Due Jul 14, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion 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 updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814, https://support.apple.com/en-us/HT213816; https://nvd.nist.gov/vuln/detail/CVE-2023-32439

CVE-2023-20867 - VMware Tools Authentication Bypass Vulnerability -

Action Due Jul 14, 2023 Target Vendor : VMware

Description : VMware Tools contains an authentication bypass vulnerability in the vgauth module. A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. An attacker must have root access over ESXi to exploit this vulnerability.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.vmware.com/security/advisories/VMSA-2023-0013.html; https://nvd.nist.gov/vuln/detail/CVE-2023-20867

CVE-2023-27992 - Zyxel Multiple NAS Devices Command Injection Vulnerability -

Action Due Jul 14, 2023 Target Vendor : Zyxel

Description : Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability that could allow an unauthenticated attacker to execute commands remotely via a crafted HTTP request.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products; https://nvd.nist.gov/vuln/detail/CVE-2023-27992

CVE-2023-32434 - Apple Multiple Products Integer Overflow Vulnerability -

Action Due Jul 14, 2023 Target Vendor : Apple

Description : Apple iOS. iPadOS, macOS, and watchOS contain an integer overflow vulnerability that could allow an application to execute code with kernel privileges.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/en-us/HT213808, https://support.apple.com/en-us/HT213812, https://support.apple.com/en-us/HT213809, https://support.apple.com/en-us/HT213810, https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814; https://nvd.nist.gov/vuln/detail/CVE-2023-32434

CVE-2023-20887 - Vmware Aria Operations for Networks Command Injection Vulnerability -

Action Due Jul 13, 2023 Target Vendor : VMware

Description : VMware Aria Operations for Networks (formerly vRealize Network Insight) contains a command injection vulnerability that allows a malicious actor with network access to perform an attack resulting in remote code execution.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.vmware.com/security/advisories/VMSA-2023-0012.html; https://nvd.nist.gov/vuln/detail/CVE-2023-20887

CVE-2020-35730 - Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability -

Action Due Jul 13, 2023 Target Vendor : Roundcube

Description : Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows an attacker to send a plain text e-mail message with Javascript in a link reference element that is mishandled by linkref_addinindex in rcube_string_replacer.php.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://roundcube.net/news/2020/12/27/security-updates-1.4.10-1.3.16-and-1.2.13; https://nvd.nist.gov/vuln/detail/CVE-2020-35730

CVE-2020-12641 - Roundcube Webmail Remote Code Execution Vulnerability -

Action Due Jul 13, 2023 Target Vendor : Roundcube

Description : Roundcube Webmail contains an remote code execution vulnerability that allows attackers to execute code via shell metacharacters in a configuration setting for im_convert_path or im_identify_path.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://roundcube.net/news/2020/04/29/security-updates-1.4.4-1.3.11-and-1.2.10; https://nvd.nist.gov/vuln/detail/CVE-2020-12641

CVE-2021-44026 - Roundcube Webmail SQL Injection Vulnerability -

Action Due Jul 13, 2023 Target Vendor : Roundcube

Description : Roundcube Webmail is vulnerable to SQL injection via search or search_params.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://roundcube.net/news/2021/11/12/security-updates-1.4.12-and-1.3.17-released; https://nvd.nist.gov/vuln/detail/CVE-2021-44026

CVE-2016-0165 - Microsoft Win32k Privilege Escalation Vulnerability -

Action Due Jul 13, 2023 Target Vendor : Microsoft

Description : Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://learn.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-039; https://nvd.nist.gov/vuln/detail/CVE-2016-0165

CVE-2016-9079 - Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability -

Action Due Jul 13, 2023 Target Vendor : Mozilla

Description : Mozilla Firefox, Firefox ESR, and Thunderbird contain a use-after-free vulnerability in SVG Animation, targeting Firefox and Tor browser users on Windows.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.mozilla.org/en-US/security/advisories/mfsa2016-92/#CVE-2016-9079; https://nvd.nist.gov/vuln/detail/CVE-2016-9079

CVE-2023-27997 - Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability -

Action Due Jul 04, 2023 Target Vendor : Fortinet

Description : Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Known

Notes : https://www.fortiguard.com/psirt/FG-IR-23-097; https://nvd.nist.gov/vuln/detail/CVE-2023-27997

CVE-2023-3079 - Google Chromium V8 Type Confusion Vulnerability -

Action Due Jun 28, 2023 Target Vendor : Google

Description : Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://chromereleases.googleblog.com/2023/06/stable-channel-update-for-desktop.html; https://nvd.nist.gov/vuln/detail/CVE-2023-3079

CVE-2023-33009 - Zyxel Multiple Firewalls Buffer Overflow Vulnerability -

Action Due Jun 26, 2023 Target Vendor : Zyxel

Description : Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the notification function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33009

CVE-2023-33010 - Zyxel Multiple Firewalls Buffer Overflow Vulnerability -

Action Due Jun 26, 2023 Target Vendor : Zyxel

Description : Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the ID processing function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33010

CVE-2023-34362 - Progress MOVEit Transfer SQL Injection Vulnerability -

Action Due Jun 23, 2023 Target Vendor : Progress

Description : Progress MOVEit Transfer contains a SQL injection vulnerability that could allow an unauthenticated attacker to gain unauthorized access to MOVEit Transfer's database. Depending on the database engine being used (MySQL, Microsoft SQL Server, or Azure SQL), an attacker may be able to infer information about the structure and contents of the database in addition to executing SQL statements that alter or delete database elements.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Known

Notes : This CVE has a CISA AA located here: https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-158a. Please see the AA for associated IOCs. Additional information is available at: https://community.progress.com/s/article/MOVEit-Transfer-Critical-Vulnerability-31May2023.; https://nvd.nist.gov/vuln/detail/CVE-2023-34362

CVE-2023-28771 - Zyxel Multiple Firewalls OS Command Injection Vulnerability -

Action Due Jun 21, 2023 Target Vendor : Zyxel

Description : Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-remote-command-injection-vulnerability-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-28771

CVE-2023-2868 - Barracuda Networks ESG Appliance Improper Input Validation Vulnerability -

Action Due Jun 16, 2023 Target Vendor : Barracuda Networks

Description : Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection.

Action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://status.barracuda.com/incidents/34kx82j5n4q9; https://nvd.nist.gov/vuln/detail/CVE-2023-2868

CVE-2023-32409 - Apple Multiple Products WebKit Sandbox Escape Vulnerability -

Action Due Jun 12, 2023 Target Vendor : Apple

Description : Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an unspecified vulnerability that can allow a remote attacker to break out of the Web Content sandbox. 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 updates per vendor instructions.

Known To Be Used in Ransomware Campaigns? : Unknown

Notes : https://support.apple.com/HT213757, https://support.apple.com/HT213758, https://support.apple.com/HT213761, https://support.apple.com/HT213762, https://support.apple.com/HT213764, https://support.apple.com/HT213765; https://nvd.nist.gov/vuln/detail/CVE-2023-32409