CVE-2019-1876

Current Description

A vulnerability in the HTTPS proxy feature of Cisco Wide Area Application Services (WAAS) Software could allow an unauthenticated, remote attacker to use the Central Manager as an HTTPS proxy. The vulnerability is due to insufficient authentication of proxy connection requests. An attacker could exploit this vulnerability by sending a malicious HTTPS CONNECT message to the Central Manager. A successful exploit could allow the attacker to access public internet resources that would normally be blocked by corporate policies.

Basic Data

PublishedJune 20, 2019
Last ModifiedOctober 09, 2019
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-306
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactNONE
CVSS 2 - Base Score5.0
SeverityMEDIUM
Exploitability Score10.0
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

CVSS 3 - Version3.0
CVSS 3 - Vector StringCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 3 - Attack VectorNETWORK
CVSS 3 - Attack ComplexityLOW
CVSS 3 - Privileges RequiredNONE
CVSS 3 - User InteractionNONE
CVSS 3 - ScopeUNCHANGED
CVSS 3 - Confidentiality ImpactNONE
CVSS 3 - Integrity ImpactLOW
CVSS 3 - Availability ImpactNONE
CVSS 3 - Base Score5.3
CVSS 3 - Base SeverityMEDIUM
Exploitability Score3.9
Base SeverityMEDIUM

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationCiscoWide Area Application Services5.5(7)*******
    2.3ApplicationCiscoWide Area Application Services6.1(1)*******
    2.3ApplicationCiscoWide Area Application Services6.4(3b)*******

Vulnerable Software List

VendorProductVersions
Cisco Wide Area Application Services 5.5(7), 6.1(1), 6.4(3b)

References

NameSourceURLTags
108863http://www.securityfocus.com/bid/108863BIDThird Party Advisory VDB Entry
20190619 Cisco Wide Area Application Services Software HTTPS Proxy Authentication Bypass Vulnerabilityhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-waas-authbypCISCOVendor Advisory