CVE-2017-9664: In ABB SREA-01 revisions A, B, C: application versions up to 3.31.5, and SREA-50 revision A: application versions up to 3.32.8, an attacker may access internal…

PriorityP260critical9.8CVSS 3.0

AVNACLPRNUINSUCHIHAH

EPSS

2.66%

83.8th percentile

In ABB SREA-01 revisions A, B, C: application versions up to 3.31.5, and SREA-50 revision A: application versions up to 3.32.8, an attacker may access internal files of ABB SREA-01 and SREA-50 legacy remote monitoring tools without any authorization over the network using a HTTP request which refers to files using ../../ relative paths. Once the internal password file is retrieved, the password hash can be identified using a brute force attack. There is also an exploit allowing running of commands after authorization.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
abb	srea-01_firmware	<= 3.31.5	—
abb	srea-50_firmware	<= 3.32.8	—
ics-cert	abb_srea-01_and_srea-50	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Path traversal attack uses HTTP requests referencing files with ../../ relative path sequences — detect HTTP requests containing '../../' targeting ABB SREA-01/SREA-50 devices ↗
→Post-exploitation activity includes command execution after authorization — monitor for unexpected command execution or configuration changes on ABB SREA-01/SREA-50 devices following authentication events ↗
→Attacker objective includes retrieval of the internal password file for offline brute-force of password hashes — monitor for unauthenticated HTTP GET requests to password file paths on affected devices ↗
→Public exploits are available for this vulnerability — treat any unauthenticated HTTP traversal attempts against SREA-01/SREA-50 as high-priority alerts ↗

·Affected products are based on a legacy software platform no longer actively maintained; patch applicability to older hardware revisions is not guaranteed ↗
·ABB tested the patch only against the latest revisions of SREA-01; applicability to older hardware revisions of SREA-01 and SREA-50 should be validated before deployment ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

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