Security Bulletin: Multiple vulnerabilities in the IBM HTTP Server and IBM WebSphere Application Server used in IBM WebSphere Application Server in IBM Cloud

Summary

There are multiple security vulnerabilities that affect the IBM WebSphere Application Server in the IBM Cloud. There are multiple vulnerabilities in the IBM HTTP Server used by WebSphere Application Server. There is a privilege escalation vulnerability in WebSphere Application Server. There is a denial of service vulnerablility in WebSphere Application Server. There is a cross-site scripting vulnerability in the OAuth, OpenID Connect and SAML features. Information disclosure in WebSphere Application Server. There is a Cross-Site Scripting exposure in the Apache CXF library used by WebSphere Application Server. CVE-2020-2654 was disclosed as part of the Oracle January 2020 Critical Patch Update. IBM WebSphere Application Server Liberty using openidConnectServer feature could allow spoofing identity by an authenticated user. CVE-2019-2949 may affect IBM® SDK, Java™ Technology Edition. Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server April 2020 CPU. WebSphere Application Server is vulnerable to a remote code execution vulnerability. WebSphere Application Server is vulnerable to an information exposure vulnerability. There is a remote code execution vulnerability in WebSphere Application Server Network Deployment.

Vulnerability Details

CVEID:CVE-2020-4448
**DESCRIPTION:**IBM WebSphere Application Server Network Deployment could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181228 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-2805
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Libraries component could allow an unauthenticated attacker to take control of the system.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179703 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

CVEID:CVE-2020-2803
**DESCRIPTION:**An unspecified vulnerability in multiple Oracle products could allow an unauthenticated attacker to take control of the system.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179701 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

CVEID:CVE-2020-2830
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Concurrency component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179728 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-2781
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE JSSE component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179681 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-2800
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Lightweight HTTP Server component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179698 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2020-2757
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Serialization component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179657 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-2756
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Serialization component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179656 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-2755
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Scripting component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179655 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-2754
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Scripting component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179654 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-4421
**DESCRIPTION:**IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180084 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2019-17573
**DESCRIPTION:**Apache CXF is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the services listing page. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim’s Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174689 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID:CVE-2020-1927
**DESCRIPTION:**Apache HTTP Server could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the mod_rewrite module. An attacker could exploit this vulnerability using a specially-crafted URL to redirect a victim to arbitrary Web sites.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178936 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID:CVE-2020-1934
**DESCRIPTION:**Apache HTTP Server could allow a remote attacker to execute arbitrary code on the system, caused by the use of uninitialized value in mod_proxy_ftp. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178937 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-4303
**DESCRIPTION:**IBM WebSphere Application Server - Liberty 17.0.0.3 through 20.0.0.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 176668.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176668 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID:CVE-2020-4304
**DESCRIPTION:**IBM WebSphere Application Server - Liberty 17.0.0.3 through 20.0.0.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 176670.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176670 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID:CVE-2020-4276
**DESCRIPTION:**IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional is vulnerable to a privilege escalation vulnerability when using token-based authentication in an admin request over the SOAP connector. X-Force ID: 175984.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/175984 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-2654
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Java SE Libraries component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/174601 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-4362
**DESCRIPTION:**IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional is vulnerable to a privilege escalation vulnerability when using token-based authentication in an admin request over the SOAP connector. IBM X-Force ID: 178929.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178929 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2019-2949
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Kerberos component could allow an unauthenticated attacker to obtain sensitive information resulting in a high confidentiality impact using unknown attack vectors.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169254 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N)

CVEID:CVE-2020-4449
**DESCRIPTION:**IBM WebSphere Application Server traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181230 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2020-4329
**DESCRIPTION:**IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0 and Liberty 17.0.0.3 through 20.0.0.4 could allow a remote, authenticated attacker to obtain sensitive information, caused by improper parameter checking. This could be exploited to conduct spoofing attacks. IBM X-Force ID: 177841.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/177841 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2020-4450
**DESCRIPTION:**IBM WebSphere Application Server traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181231 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

These vulnerabilities affect the following versions and releases of IBM WebSphere Application Server in IBM Cloud:

• Liberty
• Version 9.0
• Version 8.5

Remediation/Fixes

To patch an existing service instance, refer to the IBM HTTP Server and IBM WebSphere Application Server bulletins listed below:

• Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server
• Privilege Escalation Vulnerability in WebSphere Application Server (CVE-2020-4362)
• WebSphere Application Server Liberty is vulnerable to Cross-site Scripting (CVE-2020-4303, CVE-2020-4304)
• Privilege Escalation Vulnerability in WebSphere Application Server (CVE-2020-4276)
• Vulnerability in Apache CXF affects WebSphere Application Server (CVE-2019-17573)
• CVE-2020-2654 may affect IBM® SDK, Java™ Technology Edition
• Information disclosure in WebSphere Application Server (CVE-2020-4329)
• Potential spoofing attack in Webshere Application Server (CVE-2020-4421)
• CVE-2019-2949 may affect IBM® SDK, Java™ Technology Edition
• Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server April 2020 CPU plus deferred CVE-2019-2949 and CVE-2020-2654
• Remote code execution vulnerability in WebSphere Application Server ND (CVE-2020-4448)
• WebSphere Application Server is vulnerable to an information exposure vulnerability (CVE-2020-4449)
• WebSphere Application Server is vulnerable to a remote code execution vulnerability (CVE-2020-4450)

Please see Updating your environment in the KnowlegeCenter for information on applying service.

Alternatively, delete the vulnerable service instance and create a new instance.

Workarounds and Mitigations

None