SB2019121704 - Multiple vulnerabilities in OpenShift Container Platform
Published: December 17, 2019 Updated: December 17, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 vulnerabilities.
1) Stored cross-site scripting (CVE-ID: CVE-2019-10432)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to the affected plugin does not escape the project or build display name shown in the frame HTML page. A remote authenticated attacker who is able to control the project or build display name, typically users with Job/Configure or Build/Update permission can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10431)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the sandbox protection in the affected plugin can be circumvented through default parameter expressions in constructors. A remote authenticated attacker can specify and run sandboxed scripts to execute arbitrary code in the context of the Jenkins master JVM.
3) Input validation error (CVE-ID: CVE-2019-11255)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied input in Kubernetes CSI sidecar containers for external-provisioner (versions prior to 0.4.3 and 1.0.2, in version 1.1, and versions prior to 1.2.2 and 1.3.1), external-snapshotter (versions prior to 0.4.2 and 1.0.2, in version 1.1, versions prior to 1.2.2), and external-resizer (versions 0.1, and 0.2) . A local user can gain unauthorized PersistentVolume data access or volume mutation during snapshot, restore from snapshot, cloning and resizing operations.
4) Input validation error (CVE-ID: CVE-2017-18367)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input in libseccomp-golang. The software incorrectly generates BPFs that OR multiple arguments rather than ANDing them. A process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument.
5) Unprotected storage of credentials (CVE-ID: CVE-2019-11250)
CWE-ID: CWE-256 - Unprotected Storage of Credentials
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to other users' credentials.
The vulnerability exists due Kubernetes client-go library logs request headers at verbosity levels of 7 or higher. This can disclose credentials to unauthorized users via logs or command output. Kubernetes components (such as kube-apiserver) prior to v1.16.0, which make use of basic or bearer token authentication, and run at high verbosity levels, are affected. A local user can view contents of the configuration file and gain access to passwords for 3rd party integration.
6) Cleartext storage of sensitive information (CVE-ID: CVE-2019-14854)
CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to library-go component did not sanitize secret data written to static Pod logs when an Operator's log level was set to Debug or higher. A local user can read Pod logs if the log level had already been modified in an Operator by a privileged user.
7) Cleartext storage of sensitive information (CVE-ID: CVE-2019-10213)
CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to OpenShift Container Platform writes secrets in clear text into pod logs when the log level in a given operator is set to Debug or higher. A local user can read the log files and gain access to sensitive information.
Remediation
Install update from vendor's website.