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amazonAmazonALAS2-2019-1192
HistoryApr 04, 2019 - 10:00 p.m.

Medium: tomcat

2019-04-0422:00:00
alas.aws.amazon.com
21

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

5.5 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.83 High

EPSS

Percentile

98.4%

Issue Overview:

When the default servlet in Apache Tomcat returned a redirect to a directory (e.g. redirecting to ‘/foo/’ when the user requested ‘/foo’) a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice.(CVE-2018-11784)

Affected Packages:

tomcat

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update tomcat to update your system.

New Packages:

noarch:  
    tomcat-7.0.76-9.amzn2.noarch  
    tomcat-admin-webapps-7.0.76-9.amzn2.noarch  
    tomcat-docs-webapp-7.0.76-9.amzn2.noarch  
    tomcat-javadoc-7.0.76-9.amzn2.noarch  
    tomcat-jsvc-7.0.76-9.amzn2.noarch  
    tomcat-jsp-2.2-api-7.0.76-9.amzn2.noarch  
    tomcat-lib-7.0.76-9.amzn2.noarch  
    tomcat-servlet-3.0-api-7.0.76-9.amzn2.noarch  
    tomcat-el-2.2-api-7.0.76-9.amzn2.noarch  
    tomcat-webapps-7.0.76-9.amzn2.noarch  
  
src:  
    tomcat-7.0.76-9.amzn2.src  

Additional References

Red Hat: CVE-2018-11784

Mitre: CVE-2018-11784

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

5.5 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.83 High

EPSS

Percentile

98.4%