Is "SP REST JSON" on Firefox Add-ons Safe to Install?

DDesch · firefox · v1.6.0

Once a tab is active, the current URL is matched against the following strings: /_api/web/ /_api/site/ /_api/sp. /_api/search /_vti_bin/ListData.svc At a match the accept property in the request header is changed to 'application/json;odata=verbose' per default. Global Options Add or change SharePoint URL filters Set the accept header per URL filter In the Global options the following options can be chosen: application/json;odata=verbose application/json;odata=minimalmetadata application/json;odata=nometadata text/xml

Risk Assessment

Analyzed
57.66
out of 100
MEDIUM

40 security findings detected across all analyzers

Firefox extension requesting 6 permissions

Severity Breakdown

0
Critical
9
High
31
Medium
0
Low
0
Info

Finding Categories

9
Malware Signatures
29
IoC Indicators

YARA Rules Matched

3 rules(9 hits)
postinstall file manipulation postinstall network communication postinstall obfuscation

Requested Permissions

6 permissions
<all_urls>

Access and modify data on every website you visit

Dangerous
webRequest

Intercept, modify, and block all network requests

High
webRequestBlocking

Block network requests before they complete

High
activeTab
Medium
tabs
Medium
storage
Low

About This Extension

Once a tab is active, the current URL is matched against the following strings: <ul><li>/_api/web/</li><li>/_api/site/</li><li>/_api/sp.</li><li>/_api/search</li><li>/_vti_bin/ListData.svc</li></ul> At a match the accept property in the request header is changed to 'application/json;odata=verbose' per default. <b>Global Options</b> <ul><li>Add or change SharePoint URL filters</li><li>Set the accept header per URL filter</li></ul> In the Global options the following options can be chosen: <ul><li>application/json;odata=verbose</li><li>application/json;odata=minimalmetadata</li><li>application/json;odata=nometadata</li><li>text/xml</li></ul>

Detailed Findings

11 total

YARA Rule Matches

3 rules

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs
5
IP Addresses
1
Domains
21
Strings
29

All Indicators · 29

Domain
detected Domain: tab.id

XIOC detected Domain: tab.id

extracted_from_files

IP
detected IP: ::

XIOC detected IP: ::

extracted_from_files

URL
detected URL: http://www.w3.org/2000/svg

XIOC detected URL: http://www.w3.org/2000/svg

extracted_from_files

URL
detected URL: https://github.com/ddesch/SP-REST-JSON/tree/master/

XIOC detected URL: https://github.com/ddesch/SP-REST-JSON/tree/master/

extracted_from_files

Hash
detected MD5 Hash: 32aed30c4f119581d3379df451d6619e

XIOC detected MD5 Hash: 32aed30c4f119581d3379df451d6619e

extracted_from_files

Domain
detected Domain: style.id

XIOC detected Domain: style.id

extracted_from_files

Domain
detected Domain: sourcexml.id

XIOC detected Domain: sourcexml.id

extracted_from_files

Domain
detected Domain: attributenode.name

XIOC detected Domain: attributenode.name

extracted_from_files

Domain
detected Domain: addons.mozilla.org

XIOC detected Domain: addons.mozilla.org

extracted_from_files

Domain
detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain
detected Domain: ev.target

XIOC detected Domain: ev.target

extracted_from_files

Domain
detected Domain: browser.tabs.show

XIOC detected Domain: browser.tabs.show

extracted_from_files

Domain
detected Domain: gmx.de

XIOC detected Domain: gmx.de

extracted_from_files

URL
detected URL: http://mozilla.org/MPL/2.0/.

XIOC detected URL: http://mozilla.org/MPL/2.0/.

extracted_from_files

Domain
detected Domain: objconnectedport.name

XIOC detected Domain: objconnectedport.name

extracted_from_files

Domain
detected Domain: console.info

XIOC detected Domain: console.info

extracted_from_files

Domain
detected Domain: activetab.id

XIOC detected Domain: activetab.id

extracted_from_files

Domain
detected Domain: www.w3.org

XIOC detected Domain: www.w3.org

extracted_from_files

Domain
detected Domain: divjson.id

XIOC detected Domain: divjson.id

extracted_from_files

Domain
detected Domain: www.inkscape.org

XIOC detected Domain: www.inkscape.org

extracted_from_files

Domain
detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

extracted_from_files

Domain
detected Domain: mozilla.com

XIOC detected Domain: mozilla.com

extracted_from_files

Domain
detected Domain: stylexml.id

XIOC detected Domain: stylexml.id

extracted_from_files

Domain
detected Domain: content-signature.mozilla.org

XIOC detected Domain: content-signature.mozilla.org

extracted_from_files

Domain
detected Domain: t4c6d72cfb545292e9256539ed8d292d4.32aed30c4f119581d3379df451d6619e.addons.mozilla.org

XIOC detected Domain: t4c6d72cfb545292e9256539ed8d292d4.32aed30c4f119581d3379df451d6619e.addons.mozilla.org

extracted_from_files

Domain
detected Domain: mozilla.org

XIOC detected Domain: mozilla.org

extracted_from_files

URL
detected URL: http://addons.mozilla.org/ca/crl.pem0N

XIOC detected URL: http://addons.mozilla.org/ca/crl.pem0N

extracted_from_files

Other
detected Email: [email protected]

XIOC detected Email: [email protected]

extracted_from_files

URL
detected URL: http://www.w3.org/1999/xhtml',

XIOC detected URL: http://www.w3.org/1999/xhtml',

extracted_from_files

Security Analysis Summary

Security Analysis Overview

SP REST JSON is a Firefox Add-ons extension published by DDesch. Version 1.6.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 57.66/100 (MEDIUM risk) based on 40 security findings.

Risk Assessment

This extension presents moderate security risk. Several findings were detected that may warrant attention. Users should carefully review the permissions and findings before installation.

Findings Breakdown

  • High: 9 finding(s)
  • Medium: 31 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

  • Malware Detection: YARA rule matching against 2,400+ malware signatures
  • Secret Detection: Scanning for exposed API keys, tokens, and credentials
  • Static Analysis: Code-level security analysis for common vulnerability patterns
  • Network Analysis: Detection of suspicious network communications and endpoints
  • Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

SP REST JSON is published by DDesch on the Firefox Add-ons marketplace. The extension has approximately 94 users.

Recommendation

Exercise caution with this extension. Review the detailed findings and ensure the requested permissions align with the extension's stated functionality before installation.

Frequently Asked Questions