cbcvebase.
CVE-2021-3019
published 2021-01-05

CVE-2021-3019: ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet.

PriorityP263high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EXPLOIT
EPSS
18.98%
97.0th percentile
ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet.

Affected

1 ranges
VendorProductVersion rangeFixed in
lanproxy_projectlanproxy——

Detection & IOCsextracted from sources · hover to see the quote

path/../conf/config.properties↗
path/conf/config.properties
  • →HTTP GET request to path '/../conf/config.properties' against lanproxy instances indicates active exploitation attempt.
  • →Response Content-Type header 'application/octet-stream' combined with body containing 'config.admin.username' and 'config.admin.password' confirms successful directory traversal and credential exposure.
  • →Look for HTTP 200 responses to traversal path requests containing both 'config.admin.username' and 'config.admin.password' strings in the body as a high-confidence indicator of successful exploitation.
  • ·Vulnerability is specific to ffay lanproxy version 0.1; later versions may have patched this traversal path. ↗
  • ·Successful exploitation yields intranet connection credentials (admin username and password) stored in config.properties, enabling further lateral movement. ↗

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/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
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