National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-8056 Detail

Current Description

WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent. This causes the Firebox wgagent process to crash. This process crash ends all authenticated sessions to the Firebox, including management connections, and prevents new authenticated sessions until the process has recovered. The Firebox may also experience an overall degradation in performance while the wgagent process recovers. An attacker could continuously send XML-RPC requests that contain references to external entities to perform a limited Denial of Service (DoS) attack against an affected Firebox.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L (V3 legend)
Impact Score: 1.4
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://watchguardsupport.force.com/publicKB?type=KBSecurityIssues&SFDCID=kA62A0000000KlBSAU Vendor Advisory
https://packetstormsecurity.com/files/142177/watchguardfbxtm-xxeinject.txt Exploit Third Party Advisory VDB Entry
https://www.sidertia.com/Home/Community/Blog/2017/04/17/Fixed-the-Fireware-Vulnerabilities-discovered-by-Sidertia Exploit Third Party Advisory
https://www.watchguard.com/support/release-notes/fireware/11/en-US/EN_ReleaseNotes_Fireware_11_12_2/index.html Release Notes Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
11.2.1


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-8056
NVD Published Date:
04/22/2017
NVD Last Modified:
04/27/2017