ZeroHour
Security Affairspublished ()ingested @securityaffairs

CISA demands US govt agencies to update SolarWinds Orion software

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2020-10148
Authentication Bypass in SolarWinds Orion API (CVE-2020-10148)

The SolarWinds Orion API contains a critical authentication bypass (CWE-288/CWE-306, CVSS 9.8) that allows a remote, unauthenticated attacker to execute API commands on the Orion Platform. It is triggered by specially crafted requests to the Orion API that reach endpoints with authorization skipped, requiring no privileges or user interaction. By issuing these API commands, an attacker can take control of the SolarWinds instance; in observed intrusions, the flaw was used to install the SUPERNOVA webshell on Orion servers. Any organization running Orion Platform 2019.4 HF 5, 2020.2 with no hotfix installed, or 2020.2 HF 1 is affected. Exploitation is in the wild: the flaw is listed in CISA's KEV (added 2021-11-03), has been linked to the China-nexus actor DEV-0322 per public reporting, and EPSS assigns it a 92% probability of exploitation within 30 days.

Do: Apply the Orion Platform updates/hotfixes per SolarWinds' instructions and move all installations off the affected builds (2019.4 HF 5, 2020.2 without hotfix, 2020.2 HF 1). Until patched, restrict access to the Orion web console and API to trusted networks only. Hunt for compromise by checking for the SUPERNOVA webshell in the Orion web root and reviewing API logs for unauthenticated API command execution.

9.892% KEV
  • SolarWinds Orion Platform 2019.4 HF 5; 2020.2 with no hotfix installed; 2020.2 HF 1
largetens of thousands of Orion deployments (roughly 25,000-33,000 customer sites)
Full article554 words · extracted from securityaffairs.com · click to collapse

Pierluigi Paganini December 30, 2020

US Cybersecurity and Infrastructure Security Agency (CISA) urges US federal agencies to update the SolarWinds Orion software by the end of the year.

The US Cybersecurity and Infrastructure Security Agency (CISA) has updated its official guidance to order US federal agencies to update the SolarWinds Orion platforms by the end of the year.

According to the CISA’s Supplemental Guidance to Emergency Directive 21-01, all US government agencies running the SolarWinds Orion app must update to the latest 2020.2.1HF2 version by the end of the year or take them offline.

SolarWinds released the 2020.2.1HF2 version on December 15 to secure its installs and remove the Sunburst-related code from their systems.

“Specifically, all federal agencies operating versions of the SolarWinds Orion platform other than those identified as “affected versions” below are required to use at least SolarWinds Orion Platform version 2020.2.1HF2.” reads CISA’s Supplemental Guidance to Emergency Directive 21-01. “The National Security Agency (NSA) has examined this version and verified that it eliminates the previously identified malicious code.”

We issued V2 supplemental guidance to Emergency Directive 21-01. @NSAgov verified version 2020.2.1 HF2 of SolarWinds Orion eliminates previously identified malicious code. Agencies using non-affected versions must update to the new version: https://t.co/b05xszsVTp pic.twitter.com/xdbSM9U3Oo

— Cybersecurity and Infrastructure Security Agency (@CISAgov) December 30, 2020

The order is part of the update for the CISA’s guidance that was issued on December 18 following the discovery of the SolarWinds supply chain attack.

The US CERT Coordination Center issued the security note VU#843464 to detail the authentication bypass flaw in the Orion API, tracked as CVE-2020-10148, that allows attackers to execute remote code on Orion installations.

“This vulnerability could allow a remote attacker to bypass authentication and execute API commands which may result in a compromise of the SolarWinds instance.” reads the advisory.

The vulnerability was exploited by threat actors to install the Supernova backdoor in attacks not linked to the SolarWinds supply chain hack.

CISA urge to update to version 2020.2.1HF2 to fix any other SolarWinds Orion-related bug, including the CVE-2020-10148 vulnerability.

“Given the number and nature of disclosed and undisclosed vulnerabilities in SolarWinds Orion, all instances that remain connected to federal networks must be updated to 2020.2.1 HF2 by COB December 31, 2020.” continues CISA.

Orion Platform VersionContinued use of SolarWinds Orion permitted at this timeUpdate required?
Affected versions: 2019.4 HF5, 2020.2 RC1, 2020.2 RC2, 2020.2, 2020.2 HF1 (should be powered down or removed from networks based on ED 21-01)NoN/A
All other versions that are currently online (if the instance did not previously use an affected version)YesYes (2020.2.1HF2)

Below the list of affected versions:

  • Orion Platform 2019.4 HF5, version 2019.4.5200.9083
  • Orion Platform 2020.2 RC1, version 2020.2.100.12219
  • Orion Platform 2020.2 RC2, version 2020.2.5200.12394
  • Orion Platform 2020.2, 2020.2 HF1, version 2020.2.5300.12432

Recently, both US CISA and cybersecurity firm Crowdstrike released free detection tools to audit Azure and MS 365 environments.

Yesterday, the Microsoft 365 Defender Team revealed that the goal of the threat actors behind the SolarWinds supply chain attack was to move to the victims’ cloud infrastructure once infected their network with the Sunburst/Solorigate backdoor.
SolarWinds

If you want to receive the weekly Security Affairs Newsletter for free subscribe here.

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, CISA)

[adrotate banner=”5″]

[adrotate banner=”13″]



Text extracted automatically; images, tables and formatting may be missing. Original: https://securityaffairs.com/112797/hacking/cisa-solarwinds-guidance-update.html