CVE-2019-4538: Security Bulletin: Multiple security vulnerabilities have been addressed in IBM Security Directory Server

Security Bulletin

Summary

Multiple security vulnerabilities have been fixed and delivered in IBM Security Directory Server.

Vulnerability Details

CVEID: CVE-2019-4520
DESCRIPTION: IBM Security Directory Server uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165178 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2019-4538
DESCRIPTION: IBM Security Directory Server could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165660 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID: CVE-2019-4539
DESCRIPTION: IBM Security Directory Server does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165812 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)

CVEID: CVE-2019-4542
DESCRIPTION: IBM Security Directory Server 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.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165815 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID: CVE-2019-4549
DESCRIPTION: IBM Security Directory Server discloses sensitive information to unauthorized users. The information can be used to mount further attacks on the system.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/165951 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM Security Directory Server 6.4.0

Remediation/Fixes

Workarounds and Mitigations

None

References

Off

Acknowledgement

IBM X-Force Ethical Hacking Team: Warren Moynihan, Jonathan Fitz-Gerald, John Zuccato, Rodney Ryan, Chris Shepherd, Dmitriy Beryoza

Change History

30 September 2019: First Publish

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

PSIRT Product Records - 140744, 141953, 141954, 141957, 142846

Fixes for 6.4.0.18 PEN Test SANS-25 & High Priority issues, released in IF19 July 29th, 2019.

Document Location

Worldwide

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