CVE-2019-15988
mediumPriorität · verfolgen · 21EPSS 0.010 · 63. PerzentilEURUUSEPSS · bewertet 2026-10-27
A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An attacker could exploit this vulnerability by crafting the URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for the affected device, which could allow malicious URLs to pass through the device.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco Email Security Appliance (ESA)cisco_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 (4)
Betroffene Produkte und Versionsbereiche.
- cisco email security appliance firmware≤ 12.5.0nvdUScpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-20191120-esa-url-bypassCisco Email Security Appliance URL Filtering Bypass Vulnerability2019-11-20csaf · cisco_csafUS
A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An attacker could exploit this vulnerability by crafting the URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for the affected device, which could allow malicious URLs to pass through the device. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-url-bypass ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-url-bypass"]
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (7)
Externe Belege — Patches, Meldungen, Analysen.
- https://nvd.nist.gov/vuln/detail/CVE-2019-15988cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-mp3-bypasscnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-url-bypasscnnvd
- https://vigilance.fr/vulnerability/Cisco-Email-Security-Appliance-privilege-escalation-via-URL-Filtering-Bypass-30927cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.4393/cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-url-bypassenisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-url-bypassVendor Advisorynvd
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