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attackerkbAttackerKBAKB:63A96584-6094-4433-8AE0-1C1CD1B1C345
HistoryJul 22, 2020 - 12:00 a.m.

CVE-2020-3452 Cisco ASA / Firepower Read-Only Path Traversal Vulnerability

2020-07-2200:00:00
attackerkb.com
179

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

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

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files.

Recent assessments:

todmephis at September 30, 2020 3:37pm UTC reported:

Nothing valuable was exposed by vulnerability, also it was not possible to expand the scope or weaponize it.
This module was also tested with no success: <https://github.com/rapid7/metasploit-framework/blob/master/documentation/modules/auxiliary/scanner/http/cisco_directory_traversal.md&gt;
PoC: <https://twitter.com/aboul3la/status/1286012324722155525&gt;
<https://www.youtube.com/watch?v=74ExOh6BVxk&gt;

File Entry Points:

logo.gif
http_auth.html
user_dialog.html
localization_inc.lua
portal_inc.lua
include
nostcaccess.html
ask.html
no_svc.html
svc.html
session.js
useralert.html
ping.html
help
app_index.html
tlbr
portal_forms.js
logon_forms.js
win.js
portal.css
portal.js
sess_update.html
blank.html
noportal.html
portal_ce.html
portal.html
home
logon_custom.css
portal_custom.css
preview.html
session_expired
custom
portal_elements.html
commonspawn.js
common.js
appstart.js
appstatus
relaymonjar.html
relaymonocx.html
relayjar.html
relayocx.html
portal_img
color_picker.js
color_picker.html
cedhelp.html
cedmain.html
cedlogon.html
cedportal.html
cedsave.html
cedf.html
ced.html
lced.html
files
pluginlib.js
shshim
do_url
clear_cache
connection_failed_form
apcf
ucte_forbidden_data
ucte_forbidden_url
cookie
session_password.html
tunnel_linux.jnlp
tunnel_mac.jnlp
sdesktop
gp-gip.html
auth.html
wrong_url.html
logon_redirect.html
logout.html
logon.html
test_chargen

busterb at July 22, 2020 7:24pm UTC reported:

Nothing valuable was exposed by vulnerability, also it was not possible to expand the scope or weaponize it.
This module was also tested with no success: <https://github.com/rapid7/metasploit-framework/blob/master/documentation/modules/auxiliary/scanner/http/cisco_directory_traversal.md&gt;
PoC: <https://twitter.com/aboul3la/status/1286012324722155525&gt;
<https://www.youtube.com/watch?v=74ExOh6BVxk&gt;

File Entry Points:

logo.gif
http_auth.html
user_dialog.html
localization_inc.lua
portal_inc.lua
include
nostcaccess.html
ask.html
no_svc.html
svc.html
session.js
useralert.html
ping.html
help
app_index.html
tlbr
portal_forms.js
logon_forms.js
win.js
portal.css
portal.js
sess_update.html
blank.html
noportal.html
portal_ce.html
portal.html
home
logon_custom.css
portal_custom.css
preview.html
session_expired
custom
portal_elements.html
commonspawn.js
common.js
appstart.js
appstatus
relaymonjar.html
relaymonocx.html
relayjar.html
relayocx.html
portal_img
color_picker.js
color_picker.html
cedhelp.html
cedmain.html
cedlogon.html
cedportal.html
cedsave.html
cedf.html
ced.html
lced.html
files
pluginlib.js
shshim
do_url
clear_cache
connection_failed_form
apcf
ucte_forbidden_data
ucte_forbidden_url
cookie
session_password.html
tunnel_linux.jnlp
tunnel_mac.jnlp
sdesktop
gp-gip.html
auth.html
wrong_url.html
logon_redirect.html
logout.html
logon.html
test_chargen

ccondon-r7 at August 04, 2020 4:15pm UTC reported:

Nothing valuable was exposed by vulnerability, also it was not possible to expand the scope or weaponize it.
This module was also tested with no success: <https://github.com/rapid7/metasploit-framework/blob/master/documentation/modules/auxiliary/scanner/http/cisco_directory_traversal.md&gt;
PoC: <https://twitter.com/aboul3la/status/1286012324722155525&gt;
<https://www.youtube.com/watch?v=74ExOh6BVxk&gt;

File Entry Points:

logo.gif
http_auth.html
user_dialog.html
localization_inc.lua
portal_inc.lua
include
nostcaccess.html
ask.html
no_svc.html
svc.html
session.js
useralert.html
ping.html
help
app_index.html
tlbr
portal_forms.js
logon_forms.js
win.js
portal.css
portal.js
sess_update.html
blank.html
noportal.html
portal_ce.html
portal.html
home
logon_custom.css
portal_custom.css
preview.html
session_expired
custom
portal_elements.html
commonspawn.js
common.js
appstart.js
appstatus
relaymonjar.html
relaymonocx.html
relayjar.html
relayocx.html
portal_img
color_picker.js
color_picker.html
cedhelp.html
cedmain.html
cedlogon.html
cedportal.html
cedsave.html
cedf.html
ced.html
lced.html
files
pluginlib.js
shshim
do_url
clear_cache
connection_failed_form
apcf
ucte_forbidden_data
ucte_forbidden_url
cookie
session_password.html
tunnel_linux.jnlp
tunnel_mac.jnlp
sdesktop
gp-gip.html
auth.html
wrong_url.html
logon_redirect.html
logout.html
logon.html
test_chargen

Assessed Attacker Value: 2
Assessed Attacker Value: 2Assessed Attacker Value: 5

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

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

Related for AKB:63A96584-6094-4433-8AE0-1C1CD1B1C345