vdsm and vdsclient does not validate certficate hostname from another vdsm which could facilitate a man-in-the-middle attack

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• redhat enterprise virtualization3.0
• redhat vdsclientall versions
• redhat virtual desktop server managerall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• vdsm and vdsclient vdsm and vdsclient

  • through 2014-11-18affected

Other highest-scoring records for the same primary product.

• CVE-2008-3522Buffer overflow in the jas_stream_printf function in libjasper/base/jas_stream.c in JasPer 1.900.1 might allow context-dependent attackers t
  41Plan
• CVE-2013-1591Stack-based buffer overflow in libpixman, as used in Pale Moon before 15.4 and possibly other products, has unspecified impact and context-d
  40Plan
• CVE-2015-5201VDSM and libvirt in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H) 7-7.x before 7-7.2-20151119.0 and 6-6.x before 6-6.7-20151117.
  30Monitor
• CVE-2013-2152Unquoted Windows search path vulnerability in the SPICE service, as used in Red Hat Enterprise Virtualization (RHEV) 3.2, allows local users
  28Monitor
• CVE-2013-2151Unquoted Windows search path vulnerability in Red Hat Enterprise Virtualization (RHEV) 3 and 3.2 allows local users to gain privileges via a
  28Monitor
• CVE-2013-2176Unquoted Windows search path vulnerability in the Red Hat Enterprise Virtualization Application Provisioning Tool (RHEV-APT) in the rhev-gue
  28Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {2  // Left empty for the test environment3}

1val client = OkHttpClient.Builder()2  .certificatePinner(3    CertificatePinner.Builder()4      .add("api.sirius.example", "sha256/…")5      .build()6  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.