U.S. CISA adds BeyondTrust software flaw to its Known Exploited Vulnerabilities catalog
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2024-12356 | Unauthenticated Command Injection in BeyondTrust Privileged Remote Access/Remote Support BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) contain an unauthenticated command injection flaw (CWE-77) that allows a remote attacker to inject commands that are executed as a site user. The vulnerability is network-facing with low attack complexity and requires no privileges or user interaction (CVSS 3.1: AV:N/AC:L/PR:N/UI:N), so any attacker who can reach the affected PRA/RS interface can trigger it. Successful exploitation yields arbitrary command execution in the context of the site user, with high impact ratings for confidentiality, integrity, and availability. Any organization running BeyondTrust PRA or RS — particularly where those remote-access/remote-support services are exposed to the internet — is affected; the available data does not specify affected version ranges. The flaw is being actively exploited: it was added to CISA's Known Exploited Vulnerabilities catalog on 2024-12-19, carries an 88% EPSS probability of exploitation within 30 days (100th percentile), and was reportedly used in the breach of the U.S. Treasury alongside a PostgreSQL vulnerability. Do: Apply BeyondTrust's patches or vendor-specified mitigations immediately — remediation is mandatory for U.S. federal agencies under the KEV listing, and the source data does not include fixed build numbers, so confirm the correct upgrade version in BeyondTrust's security bulletin. As an interim measure, restrict or remove internet exposure of PRA/RS endpoints and hunt for signs of exploitation (unexpected commands executed as the site user), noting this flaw was used in the U.S. Treasury intrusion. If mitigations are unavailable, CISA's required action is to discontinue use of the product. | 9.8 | 88% | KEV PoC |
| moderate≈ a few thousand internet-exposed PRA/RS instances (order-of-magnitude estimate from public internet scans) |
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Pierluigi Paganini
December 20, 2024
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) Command Injection flaw to its Known Exploited Vulnerabilities catalog.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) Command Injection flaw, tracked as CVE-2024-12356 (CVSS score of 9.8) to its Known Exploited Vulnerabilities (KEV) catalog.
A critical vulnerability has been discovered in Privileged Remote Access (PRA) and Remote Support (RS) products which can allow
An unauthenticated attacker can exploit the vulnerability to inject commands that are run as a site user.
“A critical vulnerability has been discovered in Privileged Remote Access (PRA) and Remote Support (RS) products which can allow an unauthenticated attacker to inject commands that are run as a site user.” reads the advisory.
“All BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions contain a command injection vulnerability which can be exploited through a malicious client request. Successful exploitation of this vulnerability can allow an unauthenticated remote attacker to execute underlying operating system commands within the context of the site user.” reported BeyondTrust. “This issue is fixed through a patch available for all supported releases of RS & PRA 22.1.x and higher.”
According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, FCEB agencies have to address the identified vulnerabilities by the due date to protect their networks against attacks exploiting the flaws in the catalog.
Experts also recommend private organizations review the Catalog and address the vulnerabilities in their infrastructure.
CISA orders federal agencies to fix this vulnerability by December 27, 2024.
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