CIS CYBERSECURITY ADVISORIES

MS-ISAC ADVISORY NUMBER:
2015-078

DATE(S) ISSUED:
07/14/2015

SUBJECT:
Multiple Vulnerabilities in Adobe Reader and Adobe Acrobat Could Allow Remote Code Execution (APSB15-15)

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Reader and Adobe Acrobat. Adobe Reader and Acrobat are applications for handling PDF files. Attackers can exploit these issues to execute arbitrary code within the context of the affected application. Successful exploitation could result in an attacker compromising data security, potentially allowing access to confidential data, or compromising processing resources in a user's computer. Failed exploit attempts will likely cause denial-of-service conditions.

THREAT INTELLIGENCE

There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEM AFFECTED:

  • Adobe Reader XI (11.0.11) and earlier 11.x versions
  • Adobe Reader X (10.1.14) and earlier 10.x versions
  • Adobe Acrobat XI (11.0.11) and earlier 11.x versions
  • Adobe Acrobat X (10.1.13) and earlier 10.x versions
  • Adobe Acrobat DC (2015.007.20033) Continuous
  • Adobe Reader DC (2015.007.20033) Continuous
  • Adobe Acrobat DC (2015.006.30033) Classic
  • Adobe Reader DC (2015.006.30033) Classic

RISK:

Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Adobe Reader and Adobe Acrobat that could potentially allow an attacker to take over the affected system.

  • Buffer overflow vulnerability that could lead to code execution (CVE-2015-5093).
  • Heap buffer overflow vulnerabilities that could lead to code execution (CVE-2015-5096, CVE-2015-5098, CVE-2015-5105).
  • Memory corruption vulnerabilities that could lead to code execution (CVE-2015-5087, CVE-2015-5094, CVE-2015-5100, CVE-2015-5102, CVE-2015-5103, CVE-2015-5104, CVE-2015-3095, CVE-2015-5115, CVE-2014-0566).
  • An information leak vulnerability (CVE-2015-5107).
  • Security bypass vulnerabilities that could lead to information disclosure (CVE-2015-4449, CVE-2015-4450, CVE-2015-5088, CVE-2015-5089, CVE-2015-5092, CVE-2014-8450).
  • Stack overflow vulnerability that could lead to code execution (CVE-2015-5110).
  • Use-after-free vulnerabilities that could lead to code execution (CVE-2015-4448, CVE-2015-5095, CVE-2015-5099, CVE-2015-5101, CVE-2015-5111, CVE-2015-5113, CVE-2015-5114).
  • Validation bypass issues that could be exploited to perform privilege escalation from low to medium integrity level (CVE-2015-4446, CVE-2015-5090, CVE-2015-5106).
  • Validation bypass issue that could be exploited to cause a denial-of-service condition on the affected system (CVE-2015-5091).
  • Integer overflow vulnerabilities that could lead to code execution (CVE-2015-5097, CVE-2015-5108, CVE-2015-5109).
  • Various methods to bypass restrictions on JavaScript API execution (CVE-2015-4435, CVE-2015-4438, CVE-2015-4441, CVE-2015-4445, CVE-2015-4447, CVE-2015-4451, CVE-2015-4452, CVE-2015-5085, CVE-2015-5086).
  • Null-pointer dereference issues that could lead to a denial-of-service condition (CVE-2015-4443, CVE-2015-4444).
  • Successful exploitation could result in an attacker compromising data security, potentially allowing access to confidential data, or compromising processing resources in a user's computer. Failed exploit attempts will likely cause denial-of-service conditions.

 

RECOMMENDATIONS:

  • We recommend the following actions be taken:
  • Install the updates provided by Adobe immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to open e-mail attachments from unknown users or suspicious e-mails from trusted sources.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

 

REFERENCES:

Adobe:

https://helpx.adobe.com/security/products/reader/apsb15-15.html

CVE:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0566

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8450

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3095

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4435

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4438

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4441

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4443

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4444

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4445

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4446

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4447

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4448

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4449

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4450

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4451

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4452

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5085

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5086

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5087

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5088

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5089

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5090

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5091

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5092

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5093

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5094

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5095

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5096

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5097

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5098

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5099

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5100

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5101

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5102

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5103

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5104

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5105

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5106

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5107

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5108

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5109

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5110

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5111

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5113

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5114

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5115