SearchBlox File Exfiltration Vulnerability

OVERVIEW

Oana Murarasu of Ixia has identified a file exfiltration vulnerability in SearchBlox’s web-based proprietary search engine application. SearchBlox has produced a new version to mitigate this vulnerability.

This vulnerability could be exploited remotely.

AFFECTED PRODUCTS

The following SearchBlox version is affected:

• SearchBlox Version 8.3

IMPACT

A successful attack on this vulnerability could allow exporting of the config file without admin login, overwriting the config file without admin login, and adding and deleting (nonadmin) users.

Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.

BACKGROUND

SearchBlox is a US-based company that maintains an office in Virginia.

The affected product, SearchBlox, is a web-based proprietary search engine. According to SearchBlox, it is deployed across several sectors including Commercial Facilities, Critical Manufacturing, and Information Technology. SearchBlox estimates that these products are used in 30 countries including the United States and Europe.

VULNERABILITY CHARACTERIZATION

VULNERABILITY OVERVIEW

The config file can be overwritten without admin login. This could allow the attacker to cause a crash.

CVE-2015-7919NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7919, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 10.0 have been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H, web site last accessed December 03, 2015.

VULNERABILITY DETAILS

EXPLOITABILITY

This vulnerability could be exploited remotely.

EXISTENCE OF EXPLOIT

No known public exploits specifically target this vulnerability.

DIFFICULTY

An attacker with a low skill would be able to exploit this vulnerability.

MITIGATION

SearchBlox has released a new version, SearchBlox 8.3.1, to mitigate the identified vulnerability. The new version is available at the following URL:

http://www.searchblox.com/downloads.

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 at: http://ics-cert.us-cert.gov/content/recommended-practices. 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 ICS‑CERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site (http://ics-cert.us-cert.gov/).

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.