PDF-XChange Editor up to 7.0.326.1 x:xmpmeta Structure xml external entity reference

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 (≈)
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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.
6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in PDF-XChange Editor up to 7.0.326.1 and classified as problematic. The affected element is an unknown function of the component x:xmpmeta Structure Handler. Such manipulation leads to xml external entity reference. This vulnerability is referenced as CVE-2018-16303. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in PDF-XChange Editor up to 7.0.326.1. It has been rated as problematic. Affected by this issue is an unknown code of the component x:xmpmeta Structure Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is availability. CVE summarizes:

PDF-XChange Editor through 7.0.326.1 allows remote attackers to cause a denial of service (resource consumption) via a crafted x:xmpmeta structure, a related issue to CVE-2003-1564.

The bug was discovered 08/31/2018. The weakness was published 09/01/2018 (Website). The advisory is available at forum.tracker-software.com. This vulnerability is handled as CVE-2018-16303 since 09/01/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 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

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/31/2018 🔍
09/01/2018 +0 days 🔍
09/01/2018 +0 days 🔍
09/01/2018 +0 days 🔍
09/02/2018 +1 days 🔍
11/27/2024 +2278 days 🔍

Sourcesinfo

Advisory: forum.tracker-software.com
Status: Not defined

CVE: CVE-2018-16303 (🔍)
GCVE (CVE): GCVE-0-2018-16303
GCVE (VulDB): GCVE-100-123470

Entryinfo

Created: 09/02/2018 10:19
Updated: 11/27/2024 23:52
Changes: 09/02/2018 10:19 (55), 03/19/2020 21:02 (1), 11/27/2024 23:52 (28)
Complete: 🔍
Cache ID: 216::103

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