Executive Summary
Summary | |
---|---|
Title | Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20190417-es-tvcs-dos | First vendor Publication | 2019-04-17 |
Vendor | Cisco | Last vendor Modification | 2019-04-17 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
---|---|---|---|
Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:C) | |||
---|---|---|---|
Cvss Base Score | 6.8 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 8 | Authentication | Requires single instance |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the phone book feature of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to cause the CPU to increase to 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to improper handling of the XML input. An attacker could exploit this vulnerability by sending a Session Initiation Protocol (SIP) message with a crafted XML payload to an affected device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition. Manual intervention may be required to recover the device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Mitigation options that address this vulnerability are available. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-es-tvcs-dos ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-es-tvcs-dos"] BEGIN PGP SIGNATURE iQJ5BAEBAgBjBQJct1BYXBxDaXNjbyBQcm9kdWN0IFNlY3VyaXR5IEluY2lkZW50 IFJlc3BvbnNlIFRlYW0gKENpc2NvIFBTSVJUIGtleSAyMDE4LTIwMTkpIDxwc2ly dEBjaXNjby5jb20+AAoJEJa12PPJBfczAy0P/3N1ygJcQcJIsgSWuQaqnI/Dlyrv 7uyVsG8kH09ldFA8ZBEYfIexcSQIybSxdGUwlq2bnfIz2Xf4zy+QaJISeegdIwp6 BJYmld1I8yoHo2DqT9JaOdQrpMgPYifOTwpKZZk5tN51ehUjink9cn89h+6NzlWG 9+tLxXm995TmUi/cxLixs7v5G++BYL680+APilLqzrQNGJ7KG5mRnetWQeHuXDaS uPpRhbyP0pOssUPBi/5X+MhuC8bwTniIkJRRS0mlidQVSgGaa0n1nyVX6bk01SCQ FtLgYSjxAd6EsKKOyDD5nWLxXKFrXxaLuXBjxaJOS1iYHFyIS/FhPOFU3n4cpauD 6kh/aflUYC72QqUkuPVVpXq4kWrQZkgP1HXWJqLIgXry/jvCfLHNGLTevQh7HMXR YkyFwF3PRhi8Kf05inSADA52gG9VHfvzEnxFrlAedCpZ1Y6+ZKruVWQtun/t1Nsa yQSB/HdU45g7cq2dISVltRq+PQrcH/fFH8EfE8IsKNaalog6F9Wmi0SPV91CMNpH P9uHwtvVganIreJ12Xc2HyQ2SDf3lomHQtgbhb52WK3g98LPpGdtF4uydsCK3Zt0 Wf/9joWxGJbMIXLhSpC6Y+fN0lYChr19zS4np26oqwkDFlPWJqhgclNbUfeTkeZ0 lvZiDhdgiEMooS5Q =8mA9 END PGP SIGNATURE _______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com |
Original Source
Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...) |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Snort® IPS/IDS
Date | Description |
---|---|
2020-12-05 | Cisco VCS exponential XML entity expansion attack attempt RuleID : 49858 - Revision : 1 - Type : PROTOCOL-VOIP |
Alert History
Date | Informations |
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2020-12-05 21:23:46 |
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2019-04-19 21:21:52 |
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2019-04-18 17:18:36 |
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