Vulnerability Details : 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 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.
Products affected by CVE-2017-3813
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00048:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00051:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.04039:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.3.00748:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.3.01095:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.08005:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00061:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.00096:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.01022:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.05015:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.06014:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00057:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.00028:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.02075:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.3.02039:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.3.03086:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.04011:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.06013:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.06020:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.03013:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.04018:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.3.04027:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.01035:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.02011:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00052:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-3813
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-3813
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2017-3813
-
Assigned by: ykramarz@cisco.com (Secondary)
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The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-3813
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https://www.exploit-db.com/exploits/41476/
Cisco AnyConnect Secure Mobility Client 4.3.04027 - Local Privilege Escalation
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http://www.securitytracker.com/id/1037796
Cisco AnyConnect Secure Mobility Client Access Control Flaw in 'Start Before Logon' Lets Local Users Obtain System Privileges - SecurityTracker
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http://www.securityfocus.com/bid/96145
Cisco AnyConnect Secure Mobility Client CVE-2017-3813 Local Privilege Escalation Vulnerability
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170208-anyconnect
Cisco AnyConnect Secure Mobility Client for Windows SBL Privileges Escalation VulnerabilityVendor Advisory
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