Xerox WorkCentre prior R18-05 073.xxx.0487.15000 code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Xerox WorkCentre and classified as critical. Impacted is an unknown function. Performing a manipulation results in code injection. This vulnerability is reported as CVE-2018-20768. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Xerox WorkCentre (Printing Software). This affects an unknown part. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, 7970i, EC7836, and EC7856 devices before R18-05 073.xxx.0487.15000. An attacker can execute PHP code by leveraging a writable file.

The bug was discovered 06/28/2018. The weakness was disclosed 02/10/2019 (Website). It is possible to read the advisory at securitydocs.business.xerox.com. This vulnerability is uniquely identified as CVE-2018-20768 since 02/10/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 227 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version R18-05 073.xxx.0487.15000 eliminates this vulnerability.

The entries VDB-130706, VDB-130708, VDB-130709 and VDB-130710 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD 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: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WorkCentre R18-05 073.xxx.0487.15000

Timelineinfo

06/28/2018 🔍
02/10/2019 +227 days 🔍
02/10/2019 +0 days 🔍
02/11/2019 +1 days 🔍
05/29/2020 +473 days 🔍

Sourcesinfo

Vendor: xerox.com

Advisory: securitydocs.business.xerox.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20768 (🔍)
GCVE (CVE): GCVE-0-2018-20768
GCVE (VulDB): GCVE-100-130707
See also: 🔍

Entryinfo

Created: 02/11/2019 09:19
Updated: 05/29/2020 12:55
Changes: 02/11/2019 09:19 (57), 05/29/2020 12:55 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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