National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1806 Detail

Current Description

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Small Business Sx200, Sx300, Sx500, ESW2 Series Managed Switches and Small Business Sx250, Sx350, Sx550 Series Switches could allow an authenticated, remote attacker to cause the SNMP application of an affected device to cease processing traffic, resulting in the CPU utilization reaching one hundred percent. Manual intervention may be required before a device resumes normal operations. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a malicious SNMP packet to an affected device. A successful exploit could allow the attacker to cause the device to cease forwarding traffic, which could result in a denial of service (DoS) condition. Cisco has released firmware updates that address this vulnerability.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 8.0


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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/108335 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb-snmpdos Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption ('Resource Exhaustion') (CWE-400)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:cisco:sx200_series_firmware
     Show Matching CPE(s)
Up to (excluding)
1.4.10.6
Running on/with
 cpe:/h:cisco:sf200-24:-
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 cpe:/h:cisco:sf200-24fp:-
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 cpe:/h:cisco:sf200-24p:-
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 cpe:/h:cisco:sf200-48:-
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 cpe:/h:cisco:sf200-48p:-
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 cpe:/h:cisco:sg200-08:-
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 cpe:/h:cisco:sg200-08p:-
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 cpe:/h:cisco:sg200-10fp:-
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 cpe:/h:cisco:sg200-18:-
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 cpe:/h:cisco:sg200-26:-
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 cpe:/h:cisco:sg200-26fp:-
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 cpe:/h:cisco:sg200-26p:-
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 cpe:/h:cisco:sg200-50:-
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 cpe:/h:cisco:sg200-50fp:-
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 cpe:/h:cisco:sg200-50p:-
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Configuration 2 ( hide )
 cpe:/o:cisco:sx300_series_firmware
     Show Matching CPE(s)
Up to (excluding)
1.4.10.6
Running on/with
 cpe:/h:cisco:sf300-08:-
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 cpe:/h:cisco:sf300-24:-
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 cpe:/h:cisco:sf300-24mp:-
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 cpe:/h:cisco:sf300-24p:-
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 cpe:/h:cisco:sf300-24pp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf300-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf300-48p:-
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 cpe:/h:cisco:sf300-48pp:-
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 cpe:/h:cisco:sf302-08:-
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 cpe:/h:cisco:sf302-08mp:-
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 cpe:/h:cisco:sf302-08mpp:-
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 cpe:/h:cisco:sf302-08p:-
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 cpe:/h:cisco:sf302-08pp:-
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 cpe:/h:cisco:sg300-10:-
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 cpe:/h:cisco:sg300-10mp:-
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 cpe:/h:cisco:sg300-10mpp:-
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 cpe:/h:cisco:sg300-10p:-
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 cpe:/h:cisco:sg300-10pp:-
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 cpe:/h:cisco:sg300-10sfp:-
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 cpe:/h:cisco:sg300-20:-
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 cpe:/h:cisco:sg300-28:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg300-28mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg300-28p:-
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 cpe:/h:cisco:sg300-28pp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg300-52:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg300-52mp:-
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 cpe:/h:cisco:sg300-52p:-
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:/o:cisco:sx500_series_firmware
     Show Matching CPE(s)
Up to (excluding)
1.4.10.6
Running on/with
 cpe:/h:cisco:sf500-24:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf500-24p:-
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 cpe:/h:cisco:sf500-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf500-48p:-
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 cpe:/h:cisco:sg500-28:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500-28mpp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500-28p:-
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 cpe:/h:cisco:sg500-52:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500-52mp:-
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 cpe:/h:cisco:sg500-52p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500x-24:-
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 cpe:/h:cisco:sg500x-24p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500x-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500x-48p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg500xg-8f8t:-
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:/o:cisco:esw2_series_firmware
     Show Matching CPE(s)
Up to (excluding)
1.4.10.6
Running on/with
 cpe:/h:cisco:esw2-350g-52dc:-
     Show Matching CPE(s)
 cpe:/h:cisco:esw2-550x-48dc:-
     Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:/o:cisco:sx250_series_firmware
     Show Matching CPE(s)
Up to (excluding)
2.5.0.78
Running on/with
 cpe:/h:cisco:sf250-24:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf250-24p:-
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 cpe:/h:cisco:sf250-48:-
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 cpe:/h:cisco:sf250-48hp:-
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 cpe:/h:cisco:sg250-08:-
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 cpe:/h:cisco:sg250-08hp:-
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 cpe:/h:cisco:sg250-10p:-
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 cpe:/h:cisco:sg250-18:-
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 cpe:/h:cisco:sg250-26:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250-26hp:-
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 cpe:/h:cisco:sg250-26p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250-50:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250-50hp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250-50p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250x-24:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250x-24p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250x-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg250x-48p:-
     Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:/o:cisco:sx350_series_firmware
     Show Matching CPE(s)
Up to (excluding)
2.5.0.78
Running on/with
 cpe:/h:cisco:sf350-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf350-48mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf350-48p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-10:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-10mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-10p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-28:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-28mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg350-28p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg355-10p:-
     Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:/o:cisco:sx550_series_firmware
     Show Matching CPE(s)
Up to (excluding)
2.5.0.78
Running on/with
 cpe:/h:cisco:sf550x-24:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf550x-24mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf550x-24p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf550x-48:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf550x-48mp:-
     Show Matching CPE(s)
 cpe:/h:cisco:sf550x-48p:-
     Show Matching CPE(s)
 cpe:/h:cisco:sg550x-24:-
     Show Matching CPE(s)

Showing 100 of 111 CPEs, view all CPEs here.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1806
NVD Published Date:
05/15/2019
NVD Last Modified:
05/21/2019