High severity · published Feb 9, 2017
CVE-2017-3813
A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open…
7.8
CVSS
1.7%
EPSS
No
On KEV
Description
A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open Internet Explorer with the privileges of the SYSTEM user. The vulnerability is due to insufficient implementation of the access controls. An attacker could exploit this vulnerability by opening the Internet Explorer browser. An exploit could allow the attacker to use Internet Explorer with the privileges of the SYSTEM user. This may allow the attacker to execute privileged commands on the targeted system. This vulnerability affects versions prior to released versions 4.4.00243 and later and 4.3.05017 and later. Cisco Bug IDs: CSCvc43976.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Anyconnect Secure Mobility Client · Cisco
4.0.00048; 4.0.00051; 4.0.00052; 4.0.00057; 4.0.00061; 4.1.00028; +19 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-3813
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-3813
www.securityfocus.com
http://www.securityfocus.com/bid/96145
www.securitytracker.com
http://www.securitytracker.com/id/1037796
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170208-anyconnect
www.exploit-db.com
https://www.exploit-db.com/exploits/41476/
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