7.8
HIGH
CVE-2018-18435
KioWare Server Directory Traversal and Privilege Escalation
Description

KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.

INFO

Published Date :

March 21, 2019, 4 p.m.

Last Modified :

Nov. 21, 2024, 3:55 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2018-18435 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Kioware kioware_server

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-18435 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-18435 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 18, 2020

    Action Type Old Value New Value
    Removed Reference https://github.com/active-labs/Advisories/blob/master/ACTIVE-2019-002.md [Third Party Advisory]
    Added Reference https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md [No Types Assigned]
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 CWE-275 CWE-264 CWE-732
  • CVE Modified by [email protected]

    Apr. 18, 2019

    Action Type Old Value New Value
    Changed Description KioWare Server 4.9.6 allows local users to gain privileges by replacing \kioware_com\KWSS.exe with a Trojan horse program, because \kioware_com has "Everyone: (F)" permissions. KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.
  • Modified Analysis by [email protected]

    Apr. 16, 2019

    Action Type Old Value New Value
    Changed Reference Type https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update No Types Assigned https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update Patch, Vendor Advisory
    Changed Reference Type https://www.kioware.com/patch.aspx No Types Assigned https://www.kioware.com/patch.aspx Patch, Vendor Advisory
    Changed Reference Type https://github.com/active-labs/Advisories/blob/master/ACTIVE-2019-002.md No Types Assigned https://github.com/active-labs/Advisories/blob/master/ACTIVE-2019-002.md Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:kioware:kioware_server:4.9.6:*:*:*:*:*:*:* OR *cpe:2.3:a:kioware:kioware_server:*:*:*:*:*:*:*:* versions up to (including) 4.9.6
  • CVE Modified by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Added Reference https://www.kioware.com/patch.aspx [No Types Assigned]
    Added Reference https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update [No Types Assigned]
    Added Reference https://github.com/active-labs/Advisories/blob/master/ACTIVE-2019-002.md [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 21, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://www.exploit-db.com/exploits/46093/ No Types Assigned https://www.exploit-db.com/exploits/46093/ Exploit, Third Party Advisory, VDB Entry
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:kioware:kioware_server:4.9.6:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.16 }} 0.03%

score

0.51913

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability