cbcvebase.
CVE-2017-2853
published 2018-04-05

CVE-2017-2853: An exploitable Code Execution vulnerability exists in the RequestForPatientInfoEEGfile functionality of Natus Xltek NeuroWorks 8. A specially crafted network…

PriorityP262critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
3.44%
87.5th percentile
An exploitable Code Execution vulnerability exists in the RequestForPatientInfoEEGfile functionality of Natus Xltek NeuroWorks 8. A specially crafted network packet can cause a stack buffer overflow resulting in arbitrary command execution. An attacker can send a malicious packet to trigger this vulnerability.

Affected

2 ranges
VendorProductVersion rangeFixed in
natusxltek_neuroworks
natus_medical_incorporatednatus

Detection & IOCsextracted from sources · hover to see the quote

commandRequestForPatientInfoEEGfile
snort
43150
snort
43192
snort
43518
snort
43489
  • Trigger is a specially crafted network packet containing the 'RequestForPatientInfoEEGfile' command with an oversized path value, causing a stack buffer overflow; monitor for anomalously large path fields in NeuroWorks network traffic.
  • For the DoS variant (TALOS-2017-0354), detect packets where the itemlist length field in the deserialization header contains an invalid/oversized value.
  • Exploitation requires no authentication; any unauthenticated network packet targeting the NeuroWorks service port should be treated as suspicious and inspected for oversized fields.
  • ·Snort rules 43150 and 43192 cover the DoS variants (TALOS-2017-0354 / CVE-2017-2853 ItemList Deserialization); rules 43518 and 43489 cover the code-execution variants from the first advisory. Verify which rule SID maps to CVE-2017-2853 specifically via FireSIGHT Management Center or Snort.org, as the CVE is referenced under two different TALOS IDs (TALOS-2017-0354 and TALOS-2017-0355) across the two advisories.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.010.0CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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