Enhancesoft osTicket up to 1.10.1 integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

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 memory corruption vulnerability. Using CWE to declare the problem leads to CWE-190. The software 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 115125, 115126, 115128 and 115129 are pretty similar.

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CPE 2.3info

CPE 2.2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-190
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
See also: 🔍

Entryinfo

Created: 03/28/2018 09:09 AM
Updated: 01/17/2020 01:32 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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