VDB-115127 · CVE-2018-7194 · GCVE-0-2018-7194

Enhancesoft osTicket up to 1.10.1 integer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Enhancesoft osTicket up to 1.10.1. It has been classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2018-7194. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Enhancesoft osTicket up to 1.10.1 (Ticket Tracking Software). It has been rated as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability. The summary by CVE is:

Integer format vulnerability in the ticket number generator in Enhancesoft osTicket before 1.10.2 allows remote attackers to cause a denial-of-service (preventing the creation of new tickets) via a large number of digits in the ticket number format setting.

The bug was discovered 03/22/2018. The weakness was disclosed 03/27/2018 (Website). It is possible to read the advisory at blog.securityevaluators.com. The identification of this vulnerability is CVE-2018-7194 since 02/17/2018. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.10.2 eliminates this vulnerability.

The entries VDB-115125, VDB-115126, VDB-115128 and VDB-115129 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Ticket Tracking Software

Vendor

Enhancesoft

Name

osTicket

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: osTicket 1.10.2

Timelineinfo

02/17/2018 🔍
03/22/2018 +33 days 🔍
03/27/2018 +5 days 🔍
03/27/2018 +0 days 🔍
03/28/2018 +1 days 🔍
01/17/2020 +660 days 🔍

Sourcesinfo

Advisory: blog.securityevaluators.com
Status: Not defined

CVE: CVE-2018-7194 (🔍)
GCVE (CVE): GCVE-0-2018-7194
GCVE (VulDB): GCVE-100-115127
See also: 🔍

Entryinfo

Created: 03/28/2018 09:09
Updated: 01/17/2020 13:32
Changes: 03/28/2018 09:09 (59), 01/17/2020 13:32 (1)
Complete: 🔍
Cache ID: 216::103