VDB-122165 · CVE-2018-14596 · GCVE-0-2018-14596

wancms up to 5.0 Checkcode font_size/width/height resource management

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in wancms up to 5.0. Affected is an unknown function of the component Checkcode. The manipulation of the argument font_size/width/height leads to resource management. This vulnerability is referenced as CVE-2018-14596. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in wancms up to 5.0. It has been rated as problematic. This issue affects an unknown functionality of the component Checkcode. The manipulation of the argument font_size/width/height with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

wancms 1.0 through 5.0 allows remote attackers to cause a denial of service (resource consumption) via a checkcode (aka verification code) URI in which the values of font_size, width, and height are large numbers.

The bug was discovered 07/23/2018. The weakness was published 07/25/2018 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2018-14596 since 07/24/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

wancms

Version

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/23/2018 🔍
07/24/2018 +0 days 🔍
07/25/2018 +1 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
03/10/2020 +594 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2018-14596 (🔍)
GCVE (CVE): GCVE-0-2018-14596
GCVE (VulDB): GCVE-100-122165

Entryinfo

Created: 07/25/2018 07:39
Updated: 03/10/2020 08:18
Changes: 07/25/2018 07:39 (56), 03/10/2020 08:18 (1)
Complete: 🔍
Cache ID: 216::103