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Sid 1-33826

Message

SERVER-SAMBA Samba smbd netrServerPasswordSet deprecated vulnerable function access attempt

Summary

The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x before 4.2.0rc5 performs a free operation on an uninitialized stack pointer, which allows remote attackers to execute arbitrary code via crafted Netlogon packets that use the ServerPasswordSet RPC API, as demonstrated by packets reaching the netrServerPasswordSet function in rpcserver/netlogon/srvnetlog_nt.c.

Impact

CVSS base score 10.0 CVSS impact score 10.0 CVSS exploitability score 10.0 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE

CVE-2015-0240:

CVSS base score 10.0

CVSS impact score 10.0

CVSS exploitability score 10.0

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Detailed information

CVE-2015-0240: The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x before 4.2.0rc5 performs a free operation on an uninitialized stack pointer, which allows remote attackers to execute arbitrary code via crafted Netlogon packets that use the ServerPasswordSet RPC API, as demonstrated by packets reaching the netrServerPasswordSet function in rpcserver/netlogon/srvnetlog_nt.c.

Affected systems

  • samba samba 3.5.0
  • samba samba 3.5.1
  • samba samba 3.5.2
  • samba samba 3.5.3
  • samba samba 3.5.4
  • samba samba 3.5.5
  • samba samba 3.5.6
  • samba samba 3.5.7
  • samba samba 3.5.8
  • samba samba 3.5.9
  • samba samba 3.5.10
  • samba samba 3.5.11
  • samba samba 3.5.12
  • samba samba 3.5.13
  • samba samba 3.5.14
  • samba samba 3.5.15
  • samba samba 3.5.16
  • samba samba 3.5.17
  • samba samba 3.5.18
  • samba samba 3.5.19
  • samba samba 3.5.20
  • samba samba 3.5.21
  • samba samba 3.5.22
  • samba samba 3.6.0
  • samba samba 3.6.1
  • samba samba 3.6.2
  • samba samba 3.6.10
  • samba samba 3.6.11
  • samba samba 3.6.12
  • samba samba 3.6.13
  • samba samba 3.6.14
  • samba samba 3.6.15
  • samba samba 3.6.16
  • samba samba 3.6.17
  • samba samba 3.6.18
  • samba samba 3.6.19
  • samba samba 3.6.20
  • samba samba 3.6.21
  • samba samba 3.6.22
  • samba samba 3.6.23
  • samba samba 3.6.24
  • samba samba 4.0.0
  • samba samba 4.0.1
  • samba samba 4.0.2
  • samba samba 4.0.3
  • samba samba 4.0.4
  • samba samba 4.0.5
  • samba samba 4.0.6
  • samba samba 4.0.7
  • samba samba 4.0.8
  • samba samba 4.0.9
  • samba samba 4.0.10
  • samba samba 4.0.11
  • samba samba 4.0.12
  • samba samba 4.0.13
  • samba samba 4.0.14
  • samba samba 4.0.15
  • samba samba 4.0.16
  • samba samba 4.0.17
  • samba samba 4.0.18
  • samba samba 4.0.19
  • samba samba 4.0.20
  • samba samba 4.0.21
  • samba samba 4.0.22
  • samba samba 4.0.23
  • samba samba 4.0.24
  • samba samba 4.1.0
  • samba samba 4.1.1
  • samba samba 4.1.2
  • samba samba 4.1.3
  • samba samba 4.1.4
  • samba samba 4.1.5
  • samba samba 4.1.6
  • samba samba 4.1.7
  • samba samba 4.1.8
  • samba samba 4.1.9
  • samba samba 4.1.10
  • samba samba 4.1.11
  • samba samba 4.1.12
  • samba samba 4.1.13
  • samba samba 4.1.14
  • samba samba 4.1.15
  • samba samba 4.1.16
  • samba samba 4.2.0
  • canonical ubuntu_linux 12.04
  • canonical ubuntu_linux 14.04
  • canonical ubuntu_linux 14.10
  • novell suselinuxenterprise_desktop 12
  • novell suselinuxenterprise_server 12
  • novell suselinuxenterprisesoftwaredevelopment_kit 12
  • redhat enterprise_linux 5
  • redhat enterprise_linux 6
  • redhat enterprise_linux 7.0

Ease of attack

CVE-2015-0240:

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

  • Talos research team.
  • This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology.
  • For more information see nvd.

Additional References

  • securityblog.redhat.com/2015/02/23/samba-vulnerability-cve-2015-0240/