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attackerkbAttackerKBAKB:8AA21692-1900-4944-98AB-BEC257302198
HistoryFeb 24, 2020 - 12:00 a.m.

CVE-2020-1938

2020-02-2400:00:00
attackerkb.com
60

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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.975 High

EPSS

Percentile

100.0%

JSON

When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required. This vulnerability report identified a mechanism that allowed: – returning arbitrary files from anywhere in the web application – processing any file in the web application as a JSP Further, if the web application allowed file upload and stored those files within the web application (or the attacker was able to control the content of the web application by some other means) then this, along with the ability to process a file as a JSP, made remote code execution possible. It is important to note that mitigation is only required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.

Recent assessments:

kevthehermit at February 22, 2020 12:16am UTC reported:

Current PoC’s offer unauthenticated LFI inside the webroot.
Depending on the application and organisations configuration this could reveal sensitive information from database config or other configurations within the source code.

There is the potential for RFI / RCE although example of this are not yet public.

With a shift towards containers like Kubernetes / Docker it is important to note that older tags which may be version pinned by organisations are unlikely to be patched.

The official containers distributed by Apache include tags for vulnerable version although they do not appear to server port 8009 by default. A custom server.xml is required. This is “Likely” to happen.

busterb at February 24, 2020 5:15pm UTC reported:

Current PoC’s offer unauthenticated LFI inside the webroot.
Depending on the application and organisations configuration this could reveal sensitive information from database config or other configurations within the source code.

There is the potential for RFI / RCE although example of this are not yet public.

With a shift towards containers like Kubernetes / Docker it is important to note that older tags which may be version pinned by organisations are unlikely to be patched.

The official containers distributed by Apache include tags for vulnerable version although they do not appear to server port 8009 by default. A custom server.xml is required. This is “Likely” to happen.

theguly at March 04, 2020 3:54pm UTC reported:

Current PoC’s offer unauthenticated LFI inside the webroot.
Depending on the application and organisations configuration this could reveal sensitive information from database config or other configurations within the source code.

There is the potential for RFI / RCE although example of this are not yet public.

With a shift towards containers like Kubernetes / Docker it is important to note that older tags which may be version pinned by organisations are unlikely to be patched.

The official containers distributed by Apache include tags for vulnerable version although they do not appear to server port 8009 by default. A custom server.xml is required. This is “Likely” to happen.

wvu-r7 at February 21, 2020 10:38pm UTC reported:

Current PoC’s offer unauthenticated LFI inside the webroot.
Depending on the application and organisations configuration this could reveal sensitive information from database config or other configurations within the source code.

There is the potential for RFI / RCE although example of this are not yet public.

With a shift towards containers like Kubernetes / Docker it is important to note that older tags which may be version pinned by organisations are unlikely to be patched.

The official containers distributed by Apache include tags for vulnerable version although they do not appear to server port 8009 by default. A custom server.xml is required. This is “Likely” to happen.

noraj at October 07, 2022 8:52am UTC reported:

Current PoC’s offer unauthenticated LFI inside the webroot.
Depending on the application and organisations configuration this could reveal sensitive information from database config or other configurations within the source code.

There is the potential for RFI / RCE although example of this are not yet public.

With a shift towards containers like Kubernetes / Docker it is important to note that older tags which may be version pinned by organisations are unlikely to be patched.

The official containers distributed by Apache include tags for vulnerable version although they do not appear to server port 8009 by default. A custom server.xml is required. This is “Likely” to happen.

Assessed Attacker Value: 4
Assessed Attacker Value: 4Assessed Attacker Value: 5

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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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.975 High

EPSS

Percentile

100.0%

JSON
Related for AKB:8AA21692-1900-4944-98AB-BEC257302198
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