CVE-2019-1981
mediumPriorität · verfolgen · 23EPSS 0.010 · 64. PerzentilEURUUSEPSS · bewertet 2026-10-27
A vulnerability in the normalization functionality of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to insufficient normalization of a text-based payload. An attacker could exploit this vulnerability by sending traffic that contains specifically obfuscated payloads through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious payloads to protected systems that would otherwise be blocked.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behoben5.3.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben5.4.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.1.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.1.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.1.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.0.1.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.5cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.6cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.1.0.7cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.5cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.6cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.0.7cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.2.5cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.10cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.11cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.12cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.5cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.6cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.7cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.8cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.2.3.9cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.3.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.3.0.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.3.0.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.3.0.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.4.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.4.0.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.4.0.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben6.5.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - BehobenCisco FirePOWER Services Software for ASAcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (94)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-20190816-ftd-nullCisco Firepower Threat Defense Software NULL Character Obfuscation Detection Bypass Vulnerability2019-08-16csaf · cisco_csafUS
A vulnerability in the normalization functionality of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to insufficient normalization of a text-based payload. An attacker could exploit this vulnerability by sending traffic that contains specifically obfuscated payloads through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious payloads to protected systems that would otherwise be blocked. There are no workarounds that address this vulnerability.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (5)
Externe Belege — Patches, Meldungen, Analysen.
- https://nvd.nist.gov/vuln/detail/CVE-2019-1981cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-nullcnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3163/cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-nullenisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-nullVendor Advisorynvd
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