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ubuntucveUbuntu.comUB:CVE-2020-11998
HistorySep 10, 2020 - 12:00 a.m.

CVE-2020-11998

2020-09-1000:00:00
ubuntu.com
ubuntu.com
8

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.006 Low

EPSS

Percentile

78.1%

A regression has been introduced in the commit preventing JMX re-bind. By
passing an empty environment map to RMIConnectorServer, instead of the map
that contains the authentication credentials, it leaves ActiveMQ open to
the following attack:
https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html
“A remote client could create a javax.management.loading.MLet MBean and use
it to create new MBeans from arbitrary URLs, at least if there is no
security manager. In other words, a rogue remote client could make your
Java application execute arbitrary code.” Mitigation: Upgrade to Apache
ActiveMQ 5.15.13

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.006 Low

EPSS

Percentile

78.1%