Vulnerability Details : CVE-2017-0380
The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.
Products affected by CVE-2017-0380
- cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.3:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.0:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.2:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.1:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.3:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.2:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.1:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.2:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.3:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.5:rc:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.4:rc:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.9:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.10:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.4:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.5:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.11:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.1:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.6:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.8:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.1.6:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.3.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.4:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.9.5:alpha:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-0380
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-0380
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2017-0380
-
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-0380
-
http://www.securitytracker.com/id/1039519
Tor Flaw in rend_service_intro_established() When SafeLogging is Disabled Lets Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
-
https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486
Fix log-uninitialized-stack bug in rend_service_intro_established. · torproject/tor@09ea897 · GitHubPatch;Third Party Advisory
-
http://www.debian.org/security/2017/dsa-3993
Debian -- Security Information -- DSA-3993-1 tor
-
https://trac.torproject.org/projects/tor/ticket/23490
#23490 (Fix TROVE-2017-008: Stack disclosure in hidden services logs when SafeLogging disabled) – Tor Bug Tracker & WikiMitigation;Patch;Vendor Advisory
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