9.8
CRITICAL
CVE-2018-20771
Xerox WorkCentre Unauthenticated Remote Command Execution Vulnerability
Description

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. There is unauthenticated Remote Command Execution.

INFO

Published Date :

Feb. 10, 2019, 5:29 p.m.

Last Modified :

Nov. 21, 2024, 4:02 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2018-20771 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Xerox workcentre_3655_firmware
2 Xerox workcentre_3655i_firmware
3 Xerox workcentre_5865_firmware
4 Xerox workcentre_5875_firmware
5 Xerox workcentre_5890_firmware
6 Xerox workcentre_5865i_firmware
7 Xerox workcentre_5875i_firmware
8 Xerox workcentre_5890i_firmware
9 Xerox workcentre_6655_firmware
10 Xerox workcentre_6655i_firmware
11 Xerox workcentre_7225i_firmware
12 Xerox workcentre_7830_firmware
13 Xerox workcentre_7835_firmware
14 Xerox workcentre_7845_firmware
15 Xerox workcentre_7855_firmware
16 Xerox workcentre_7970_firmware
17 Xerox workcentre_7970i_firmware
18 Xerox workcentre_7225_firmware
19 Xerox workcentre_7220_firmware
20 Xerox workcentre_5845_firmware
21 Xerox workcentre_5900_firmware
22 Xerox workcentre_5900i_firmware
23 Xerox workcentre_7220i_firmware
24 Xerox workcentre_7855i_firmware
25 Xerox workcentre_7845i_firmware
26 Xerox workcentre_7835i_firmware
27 Xerox workcentre_7830i_firmware
28 Xerox workcentre_ec7836_firmware
29 Xerox workcentre_ec7856_firmware
30 Xerox workcentre_3655i
31 Xerox workcentre_3655
32 Xerox workcentre_5890i
33 Xerox workcentre_5865i
34 Xerox workcentre_5875i
35 Xerox workcentre_5845
36 Xerox workcentre_5865
37 Xerox workcentre_5875
38 Xerox workcentre_5890
39 Xerox workcentre_5900
40 Xerox workcentre_5900i
41 Xerox workcentre_6655
42 Xerox workcentre_6655i
43 Xerox workcentre_7855
44 Xerox workcentre_7225
45 Xerox workcentre_7220
46 Xerox workcentre_7220i
47 Xerox workcentre_7225i
48 Xerox workcentre_7855i
49 Xerox workcentre_7845i
50 Xerox workcentre_7835i
51 Xerox workcentre_7830i
52 Xerox workcentre_7830
53 Xerox workcentre_7835
54 Xerox workcentre_7845
55 Xerox workcentre_7970
56 Xerox workcentre_7970i
57 Xerox workcentre_ec7836
58 Xerox workcentre_ec7856
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-20771.

URL Resource
https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdf Vendor Advisory
https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdf Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-20771 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20771 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdf
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 13, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdf No Types Assigned https://securitydocs.business.xerox.com/wp-content/uploads/2018/07/cert_Security_Mini_Bulletin_XRX18Y_for_ConnectKey_EC78xx_v1.0.pdf Vendor Advisory
    Added CWE CWE-20
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_3655i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.060.048.15000 OR cpe:2.3:h:xerox:workcentre_3655i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_3655_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.060.048.15000 OR cpe:2.3:h:xerox:workcentre_3655:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5890i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5890i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5865i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5865i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5875i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5875i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5845_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5845:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5865_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5865:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5875_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5875:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5890_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.190.048.15000 OR cpe:2.3:h:xerox:workcentre_5890:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5900_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.091.048.15000 OR cpe:2.3:h:xerox:workcentre_5900:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_5900i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.091.048.15000 OR cpe:2.3:h:xerox:workcentre_5900i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_6655_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.110.048.15000 OR cpe:2.3:h:xerox:workcentre_6655:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_6655i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.110.048.15000 OR cpe:2.3:h:xerox:workcentre_6655i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7855_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.040.048.15000 OR cpe:2.3:h:xerox:workcentre_7855:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7225_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.030.048.15000 OR cpe:2.3:h:xerox:workcentre_7225:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7220_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.030.048.15000 OR cpe:2.3:h:xerox:workcentre_7220:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7220i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.030.048.15000 OR cpe:2.3:h:xerox:workcentre_7220i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7225i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.030.048.15000 OR cpe:2.3:h:xerox:workcentre_7225i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7855i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.040.048.15000 OR cpe:2.3:h:xerox:workcentre_7855i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7845i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.040.048.15000 OR cpe:2.3:h:xerox:workcentre_7845i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7835i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.010.048.15000 OR cpe:2.3:h:xerox:workcentre_7835i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7830i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.010.048.15000 OR cpe:2.3:h:xerox:workcentre_7830i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7830_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.010.048.15000 OR cpe:2.3:h:xerox:workcentre_7830:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7835_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.010.048.15000 OR cpe:2.3:h:xerox:workcentre_7835:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7845_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.040.048.15000 OR cpe:2.3:h:xerox:workcentre_7845:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7970_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.200.048.15000 OR cpe:2.3:h:xerox:workcentre_7970:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_7970i_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.200.048.15000 OR cpe:2.3:h:xerox:workcentre_7970i:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_ec7836_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.050.048.15000 OR cpe:2.3:h:xerox:workcentre_ec7836:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:xerox:workcentre_ec7856_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 073.020.048.15000 OR cpe:2.3:h:xerox:workcentre_ec7856:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-20771 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-20771 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.57 }} 0.01%

score

0.77690

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability