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Web Gateway CVE-2019-3644

HIGH
2019-09-11 trellixpsirt@trellix.com
Denial Of Service Enterprise Security Manager Web Gateway Advanced Threat Defense Active Response Mcafee
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 2.4% exploitation probability (EPSS)

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AnalysisAI

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies. Affected products include: Mcafee Active Response, Mcafee Advanced Threat Defense, Mcafee Enterprise Security Manager, Mcafee Web Gateway.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies.

Threat Intelligence Overview

EPSS Score
2.4%
Top 18% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 2.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:mcafee:active_response:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.3:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.6:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.3.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.4.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.3:*:*:*:*:*:*:*
+ 4 more

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The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote attackers to execute arbitrary comman
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The file-management scripts in the management GUI in Symantec Web Gateway 5.0.x before 5.0.3 allow remote attackers to u
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An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. Rated med
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Symantec Web Gateway (SWG) before 5.2.5 allows remote authenticated users to execute arbitrary OS commands. Rated high s
CVE-2013-1616 HIGH POC
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The management console on the Symantec Web Gateway (SWG) appliance before 5.1.1 allows remote attackers to execute arbit
CVE-2021-3156 HIGH POC
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Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege
CVE-2019-9169 CRITICAL POC
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In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer ove
CVE-2013-5017 CRITICAL
9.8 Jun 18

SNMPConfig.php in the management console in Symantec Web Gateway (SWG) before 5.2.1 allows remote attackers to execute a
CVE-2017-1000366 HIGH POC
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glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, causin
CVE-2016-1762 HIGH POC
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The xmlNextChar function in libxml2 before 2.9.4 allows remote attackers to cause a denial of service (heap-based buffer

Same technique Denial Of Service

View all
CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

References

Advisories & patches
REF https://kc.mcafee.com/corporate/index?page=content&id=SB10296

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