CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
58.6%
**ATTENTION:**Remotely exploitable/low skill level to exploit. Public exploits are available.
Vendor: ABB
Equipment: SREA-01 and SREA-50
Vulnerability: Relative Path Traversal
ABB reports that the vulnerability affects the following SREA-01 and SREA-50 legacy remote monitoring tools and Ethernet adapters:
An attacker who successfully exploits this vulnerability could access files on the affected productsβ file systems, view data, change configuration, retrieve password hash codes, and potentially insert and send commands to connected devices without authorization.
HMS Industrial Networks Ab created an update to resolve a publicly reported vulnerability in the ABB products listed above. Products are based on a legacy software platform which is no longer actively maintained. The problem is corrected by installing a patch that is available at the following location:
Note: ABB has tested the patch only with the latest revisions of the SREA-01. The patch should also be applicable to the latest revisions of the SREA-50. If an old revision of hardware is in use, it is suggested to replace the hardware either with latest revision or with some other remote monitoring tool.
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available in the ICSβCERT Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.
An attacker may access internal files of the affected products without any authorization over the network, using a HTTP request which refers to files using β¦/β¦/ 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.
CVE-2017-9664 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Bertin Jose and Fernandez Ezequiel discovered the vulnerability. HMS Industrial Networks Ab provided a patch to correct the issue.
Critical Infrastructure Sectors: Critical Manufacturing, Energy
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Switzerland
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CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
58.6%