Detections
Analytics
Cisco Email Security Appliance Filter Bypass Vulnerability (cisco-sa-20190501-esa-bypass)
medium Nessus Plugin ID 126823
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco Email Security Appliance (ESA) is affected by following vulnerability- A vulnerability in certain attachment detection mechanisms of the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the filtering functionality of an affected device.The vulnerability is due to improper detection of certain content sent to an affected device. An attacker could exploit this vulnerability by sending certain file types without Content-Disposition information to an affected device. A successful exploit could allow an attacker to send messages that contain malicious content to users. (CVE-2019-1844)
Please see the included Cisco BIDs and Cisco Security Advisory for more information
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvm36810See Also
Plugin Details
Severity: Medium
ID: 126823
File Name: cisco-sa-20190501-esa-bypass.nasl
Version: 1.7
Type: local
Family: CISCO
Published: 7/19/2019
Updated: 6/3/2021
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2019-1844
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Required KB Items: Settings/ParanoidReport, Host/AsyncOS/Cisco Email Security Appliance/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 5/1/2019
Vulnerability Publication Date: 5/3/2019
Reference Information
CVE: CVE-2019-1844
BID: 108149