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cve[email protected]CVE-2019-1672
HistoryFeb 08, 2019 - 6:29 p.m.

CVE-2019-1672

2019-02-0818:29:00
CWE-400
web.nvd.nist.gov
23
cve-2019-1672
vulnerability
decryption policy
cisco
web security appliance
wsa
remote attacker
ssl encryption
network security
nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

5.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

43.9%

A vulnerability in the Decryption Policy Default Action functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured drop policy and allow traffic onto the network that should have been denied. The vulnerability is due to the incorrect handling of SSL-encrypted traffic when Decrypt for End-User Notification is disabled in the configuration. An attacker could exploit this vulnerability by sending a SSL connection through the affected device. A successful exploit could allow the attacker to bypass a configured drop policy to block specific SSL connections. Releases 10.1.x and 10.5.x are affected.

Affected configurations

NVD
Node
ciscoweb_security_applianceMatch10.1.0-204
OR
ciscoweb_security_applianceMatch10.5.2-072
OR
ciscoweb_security_applianceMatch11.5.1-fcs-115

CNA Affected

[
  {
    "product": "Cisco Web Security Appliance (WSA) ",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "10.1"
      },
      {
        "status": "affected",
        "version": "10.5"
      }
    ]
  }
]

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

5.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

43.9%

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