Background exploitation KEV catalog No authentication
CVE-2020-5410

VMware Tanzu Spring Cloud Config Directory Traversal Vulnerability

Spring Cloud Config, versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user, or…

CheckOps priority index
8.3/10 Patch within 24 h
Severity7.5
Probability9.6
Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 95.6% higher than 99.9% of CVEs
CVSS 3.1 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:
Exploited for 1,684 days 25 Mar 2022
CISA due date 15 Apr 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

  • KEV catalog (CISA)25 Mar 2022
  • Exploited in EUVD (ENISA)25 Mar 2022
  • Used by ransomwareno
  • EPSS above 10 %95.6%
  • No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Spring Cloud Config, versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted URL that can lead to a directory traversal attack.

Affected products

Spring Cloud ConfigSpring Cloud Configuration (Config) Server
Affected versions
  • 2.2 <2.2.3
  • 2.1 <2.1.9
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 95.6%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2022-22963VMware Tanzu Spring Cloud Function Remote Code Execution Vulnerability
    9.3 · Background exploitation
  • CVE-2018-1273VMware Tanzu Spring Data Commons Property Binder Vulnerability
    9.8 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities