Finding Confluence servers (again) with runZero

(updated ), by Pearce Barry

An actively exploited zero-day has surfaced in popular wiki software Confluence. Deemed “critical” in severity, this vulnerability affects all supported versions of Confluence Server and Confluence Data Center, and also older, unsupported versions (i.e. everything after version 1.3.0). Hosted instances within Atlassian Cloud are reportedly protected from exploitation.

What is the impact?

Upon successful exploitation via OGNL template injection, this vulnerability (tracked as CVE-2022-26134) can provide unauthenticated remote code execution (RCE) to an attacker. Cybersecurity firm Volexity discovered the vulnerability while performing incident response, and noted, confirmed, and disclosed the actively exploited attack vector to Atlassian.

Are updates available?

Atlassian has made fixes available for a number of versions and strongly encourages admins to update. If patching in the near term isn’t viable, mitigation strategies to limit exploitation opportunities are also provided. CISA has added this zero-day to its Known Exploited Vulnerabilities Catalog, with advice to block internet access to affected Confluence products.

How do I find potentially vulnerable Confluence instances with runZero?

From the Service Inventory, use the following pre-built query to locate assets running Confluence within your network which may need remediation or mitigation:

product:confluence OR (_asset.protocol:http AND protocol:http AND has:http.head.xConfluenceRequestTime)
Confluence prebuilt query is available in the Queries Library

As always, any prebuilt queries we create are available from our Queries Library. Check out the library for other useful inventory queries.

Get runZero for free

Don’t have runZero and need help finding vulnerable Confluence instances?

Start your trial today
Learn more about runZero

Similar Content

August 4, 2022

Finding DrayTek Vigor routers

The Trellix Threat Labs Vulnerability Research team recently published vulnerability details affecting almost 30 models of DrayTek Vigor routers. This vulnerability resides in the management interface login page and is trivial to exploit via buffer overflow. An …

Read More

July 29, 2022

Hunting for X.509 Certificates

X.509 certificates are used to secure communications over both trusted and untrusted networks. Protocols such as Transport Layer Security (TLS) rely on X.509 certificates to keep their communications secure between endpoints. Each X.509 certificate is composed of a public …

Read More

June 21, 2022

Finding Microsoft VPN/PPTP with runZero

Last month, researcher Alex Nichols at Nettitude reported a vulnerability in Microsoft’s Windows VPN software that could allow for remote code execution or local privilege escalation by an attacker. This vulnerability lies in a use-after-free condition that can occur in the …

Read More