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HistoryJan 08, 2021 - 11:10 p.m.

Security Bulletin: An Eclipse Jetty Vulnerability Affects IBM Sterling Secure External Authentication Server (CVE-2020-27216)

2021-01-0823:10:25
www.ibm.com
9

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

Summary

A vulnerability allowing Eclipse Jetty to gain elevated privileges was addressed by IBM Sterling Secure External Authentication Server.

Vulnerability Details

CVEID:CVE-2020-27216
**DESCRIPTION:**Eclipse Jetty could allow a local authenticated attacker to gain elevated privileges on the system, caused by a race condition in the creation of the temporary subdirectory. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190474 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM External Authentication Server 6.0.0 through 6.0.1.1 iFix 2
IBM Sterling External Authentication Server 2.4.3 through 2.4.3.2 iFix 9

Remediation/Fixes

Product

|

VRMF

|

iFix

|

Remediation/First Fix

—|—|—|—

IBM Secure External Authentication Server

|

6.0.1.1

|

iFix 3

|

Fix Central

IBM Sterling External Authentication Server

|

2.4.3.2

|

iFix 10

|

Fix Central

Workarounds and Mitigations

None

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

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