Attacker Value
Moderate
(1 user assessed)
Exploitability
Very High
(1 user assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2017-6527

Disclosure Date: March 09, 2017
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Metasploit Module

Description

An issue was discovered in dnaTools dnaLIMS 4-2015s13. dnaLIMS is vulnerable to a NUL-terminated directory traversal attack allowing an unauthenticated attacker to access system files readable by the web server user (by using the viewAppletFsa.cgi seqID parameter).

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2
Ratings
  • Attacker Value
    Medium
  • Exploitability
    Very High
Technical Analysis

Typically you’ll want to combine this vulnerability with CVE-2017-6528 to download the user/password database. Developer was not interested in patching this vulnerability. This is just a typical directory traversal, but a null %00 at the end. In production we found this to be 4 ../ of depth.

CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None

General Information

Vendors

  • dnatools

Products

  • dnalims 4-2015s13

Additional Info

Technical Analysis