VMware ESXi and vCenter Server contain a reflected cross-site scripting vulnerability due to improper input validation. A malicious actor with network access to the login page of certain ESXi host or vCenter Server URL paths may exploit this issue to steal cookies or redirect to malicious websites.

vCenter Server contains a partial information disclosure vulnerability. A malicious actor with non-administrative privileges to vCenter Server may leverage this issue to access unauthorized data.

The vCenter Server contains an information disclosure vulnerability due to the logging of credentials in plaintext. A malicious actor with access to a workstation that invoked a vCenter Server Appliance ISO operation (Install/Upgrade/Migrate/Restore) can access plaintext passwords used during that operation.

The vCenter Server contains a denial-of-service vulnerability in the content library service. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to trigger a denial-of-service condition by sending a specially crafted header.

The vCenter Server contains a denial-of-service vulnerability in the Analytics service. Successful exploitation of this issue may allow an attacker to create a denial-of-service condition on vCenter Server.

The vCenter Server contains an arbitrary file deletion vulnerability in a VMware vSphere Life-cycle Manager plug-in. A malicious actor with network access to port 9087 on vCenter Server may exploit this issue to delete non critical files.

The vCenter Server contains a reflected cross-site scripting vulnerability due to a lack of input sanitization. An attacker may exploit this issue to execute malicious scripts by tricking a victim into clicking a malicious link.

vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation.

The vCenter Server contains a local information disclosure vulnerability in the Analytics service. An authenticated user with non-administrative privilege may exploit this issue to gain access to sensitive information.

The vCenter Server contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in vCenter Server Content Library. An authorised user with access to content library may exploit this issue by sending a POST request to vCenter Server leading to information disclosure.

The vCenter Server contains a denial-of-service vulnerability due to improper XML entity parsing. A malicious actor with non-administrative user access to the vCenter Server vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash) may exploit this issue to create a denial-of-service condition on the vCenter Server host.

VMware ESXi and vCenter Server contain a partial denial of service vulnerability in their respective authentication services. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 5.3.

Sensitive information disclosure vulnerability resulting from a lack of certificate validation during the File-Based Backup and Restore operations of VMware vCenter Server Appliance (6.7 before 6.7u3a and 6.5 before 6.5u3d) may allow a malicious actor to intercept sensitive data in transit over SCP. A malicious actor with man-in-the-middle positioning between vCenter Server Appliance and a backup target may be able to intercept sensitive data in transit during File-Based Backup and Restore operations.

Sensitive information disclosure vulnerability resulting from a lack of certificate validation during the File-Based Backup and Restore operations of VMware vCenter Server Appliance (6.7 before 6.7u3a and 6.5 before 6.5u3d) may allow a malicious actor to intercept sensitive data in transit over FTPS and HTTPS. A malicious actor with man-in-the-middle positioning between vCenter Server Appliance and a backup target may be able to intercept sensitive data in transit during File-Based Backup and Restore operations.

VMware vSphere ESXi (6.7 prior to ESXi670-201810101-SG, 6.5 prior to ESXi650-201811102-SG, and 6.0 prior to ESXi600-201807103-SG) and VMware vCenter Server (6.7 prior to 6.7 U1b, 6.5 prior to 6.5 U2b, and 6.0 prior to 6.0 U3j) contain an information disclosure vulnerability in clients arising from insufficient session expiration. An attacker with physical access or an ability to mimic a websocket connection to a user’s browser may be able to obtain control of a VM Console after the user has logged out or their session has timed out.

VMware vCenter Server (6.5 prior to 6.5 U1) contains a vulnerability that may allow for stored cross-site scripting (XSS). An attacker with VC user privileges can inject malicious java-scripts which will get executed when other VC users access the page.

VMware vCenter Server (6.5 prior to 6.5 U1) contains an information disclosure issue due to the service startup script using world writable directories as temporary storage for critical information. Successful exploitation of this issue may allow unprivileged host users to access certain critical information when the service gets restarted.

CRLF injection vulnerability in VMware vCenter Server 6.0 before U2 and ESXi 6.0 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the vSphere Web Client in VMware vCenter Server 5.0 before U3g, 5.1 before U3d, and 5.5 before U2d allows remote attackers to inject arbitrary web script or HTML via a crafted URL.

Cross-site scripting (XSS) vulnerability in the Web Client in VMware vCenter Server 5.1 before update 3d, 5.5 before update 3d, and 6.0 before update 2 on Windows allows remote attackers to inject arbitrary web script or HTML via the flashvars parameter.

vpxd in VMware vCenter Server 5.0 before u3e, 5.1 before u3, and 5.5 before u2 allows remote attackers to cause a denial of service via a long heartbeat message.

VMware vCenter Server 5.5 before u3 and 6.0 before u1 does not verify X.509 certificates from TLS LDAP servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

Directory traversal vulnerability in vCenter Server in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, and VMware VirtualCenter 2.5 before Update 6a, allows remote attackers to read arbitrary files via unspecified vectors.

The self-extracting installer in the vSphere Client Installer package in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, VMware ESXi 4.x before 4.1 Update 1, and VMware ESX 4.x before 4.1 Update 1 does not have a digital signature, which might make it easier for remote attackers to spoof the software distribution via a Trojan horse installer.

Multiple cross-site scripting (XSS) vulnerabilities in WebWorks Help 2.0 through 5.0 in VMware vCenter 4.0 before Update 1 Build 208156; VMware Server 2.0.2; VMware ESX 4.0; VMware Lab Manager 2.x; VMware vCenter Lab Manager 3.x and 4.x before 4.0.1; VMware Stage Manager 1.x before 4.0.1; WebWorks Publisher 6.x through 8.x; WebWorks Publisher 2003; and WebWorks ePublisher 9.0.x through 9.3, 2008.1 through 2008.4, and 2009.x before 2009.3 allow remote attackers to inject arbitrary web script or HTML via (1) wwhelpentry.html, reachable through index.html and wwhsec.htm, (2) wwhelp/wwhimpl/api.htm, (3) wwhelp/wwhimpl/common/html/frameset.htm, (4) wwhelp/wwhimpl/common/scripts/switch.js, or (5) the window.opener component in wwhelp/wwhimpl/common/html/bookmark.htm, related to (a) unspecified parameters and (b) messages used in topic links for the bookmarking functionality.

Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

VMware VirtualCenter 2.5 before Update 2 and 2.0.2 before Update 5 relies on client-side "enabled/disabled functionality" for access control, which allows remote attackers to determine valid user names by enabling functionality in the GUI and then making an "attempt to assign permissions to other system users."