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ubuntucveUbuntu.comUB:CVE-2020-27216
HistoryOct 23, 2020 - 12:00 a.m.

CVE-2020-27216

2020-10-2300:00:00
ubuntu.com
ubuntu.com
17

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

0.001 Low

EPSS

Percentile

29.9%

In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru
10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems,
the system’s temporary directory is shared between all users on that
system. A collocated user can observe the process of creating a temporary
sub directory in the shared temporary directory and race to complete the
creation of the temporary subdirectory. If the attacker wins the race then
they will have read and write permission to the subdirectory used to unpack
web applications, including their WEB-INF/lib jar files and JSP files. If
any code is ever executed out of this temporary directory, this can lead to
a local privilege escalation vulnerability.

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

0.001 Low

EPSS

Percentile

29.9%