New Cyber Espionage Group Targeting Ministries of Foreign Affairs
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2020-5902 | Unauthenticated RCE via path traversal in F5 BIG-IP TMUI CVE-2020-5902 is a critical, unauthenticated remote code execution flaw in the F5 BIG-IP Traffic Management User Interface (TMUI), the appliance's web management console, rooted in a directory/path traversal issue (CWE-22) in undisclosed TMUI pages. It is triggered by sending crafted HTTP(S) requests to the management interface — classically path-traversal URLs beneath the TMUI application on the management port — which lets an attacker bypass authentication, read or delete arbitrary files, and execute commands without credentials. Successful exploitation yields full control of the BIG-IP system, which attackers can use to pivot into networks the appliance fronts, maintain persistence, and deploy ransomware. Any organization running an affected F5 BIG-IP appliance or virtual edition whose TMUI is reachable, or whose management network can be reached, is exposed; F5's installed base spans large enterprises and service providers, so the footprint is broad. Exploitation is confirmed in the wild: the flaw was mass-scanned and exploited within days of its July 2020 disclosure, it is listed in CISA KEV with known ransomware use, and EPSS assigns a ~100% probability of exploitation within 30 days. Do: Patch immediately using F5's advisory K52145254 — upgrade BIG-IP to a fixed release per the vendor's version matrix, since CISA's required action is applying vendor updates. Until patched, restrict TMUI/management-interface access to trusted source IPs or a VPN (or disable TMUI if unused) and apply F5's published interim workaround. Because ransomware use is confirmed, hunt for indicators of compromise on both patched and unpatched appliances (unexpected files, webshells, modified login pages, new accounts or scheduled tasks) before treating systems as clean. | 9.8 | 100% | KEV ransomware PoC ×8 |
| mass≈100,000–300,000 internet-exposed BIG-IP TMUI endpoints, with a far larger internal installed base |
Full article375 words · extracted from thehackernews.com · click to collapse
Ravie LakshmananJun 11, 2021
Cybersecurity researchers on Thursday took the wraps off a new cyber espionage group that has been behind a series of targeted attacks against diplomatic entities and telecommunication companies in Africa and the Middle East since at least 2017.
Dubbed "BackdoorDiplomacy," the campaign involves targeting weak points in internet-exposed devices such as web servers to perform a panoply of cyber hacking activities, including laterally moving across the network to deploy a custom implant called Turian that's capable of exfiltrating sensitive data stored in removable media.
"BackdoorDiplomacy shares tactics, techniques, and procedures with other Asia-based groups. Turian likely represents a next stage evolution of Quarian, the backdoor last observed in use in 2013 against diplomatic targets in Syria and the U.S," said Jean-Ian Boutin, head of threat research at Slovak cybersecurity firm ESET.
Engineered to target both Windows and Linux operating systems, the cross-platform group singles out management interfaces for networking equipment and servers with internet-exposed ports, likely exploiting unpatched vulnerabilities to deploy the China Chopper web shell for initial access, using it to conduct reconnaissance and install the backdoor.
Targeted systems include F5 BIG-IP devices (CVE-2020-5902), Microsoft Exchange servers, and Plesk web hosting control panels. Victims have been identified in the Ministries of Foreign Affairs of multiple African countries, as well as in Europe, the Middle East, and Asia. Additionally, telecom providers in Africa and at least one Middle Eastern charity have also been hit.
"In each case, operators employed similar tactics, techniques, and procedures (TTPs), but modified the tools used, even within close geographic regions, likely to make tracking the group more difficult," the researchers said. BackdoorDiplomacy is also believed to overlap with previously reported campaigns operated by a Chinese-speaking group Kaspersky tracks as "CloudComputating."
Besides its features to gather system information, take screenshots, and carry out file operations, ESET researchers said Turian's network encryption protocol is nearly identical to that employed by WhiteBird, a C++ backdoor operated by an Asia-based threat actor named Calypso, that was installed within diplomatic organizations in Kazakhstan and Kyrgyzstan, and during the same timeframe as BackdoorDiplomacy.
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