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HomeResourcesAdvisoriesMultiple Vulnerabilities in Adobe Acrobat and Reader Could Allow for Arbitrary Code Execution (APSB18-09)

Multiple Vulnerabilities in Adobe Acrobat and Reader Could Allow for Arbitrary Code Execution (APSB18-09)

MS-ISAC ADVISORY NUMBER:

2018-056

DATE(S) ISSUED:

05/14/2018

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Acrobat and Reader, the most severe of which could allow for arbitrary code execution. Adobe Acrobat and Reader allow a user to view, create, manipulate, print and manage files in Portable Document Format (PDF). Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

THREAT INTELLIGENCE:

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

SYSTEMS AFFECTED:

  • Adobe Acrobat DC (Consumer Track) for Windows and Macintosh versions 2018.011.20038 and earlier
  • Adobe Acrobat Reader DC (Consumer Track) for Windows and Macintosh versions 2018.011.20038 and earlier
  • Adobe Acrobat 2017 (Classic 2017 Track) for Windows and Macintosh versions 2017.011.30079 and earlier
  • Adobe Acrobat Reader 2017 (Classic 2017 Track) for Windows and Macintosh versions 2017.011.30079 and earlier
  • Adobe Acrobat DC (Classic 2015 Track) for Windows and Macintosh versions 2015.006.30417 and earlier
  • Adobe Acrobat Reader DC (Classic 2015 Track) for Windows and Macintosh versions 2015.006.30417 and earlier

RISK:

Government:
  • Large and medium government entities: HIGH
  • Small government entities: MEDIUM
Businesses:
  • Large and medium business entities: HIGH
  • Small business entities: MEDIUM
Home Users:
LOW

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Adobe Acrobat and Reader, the most severe of which could allow for arbitrary code execution. The vulnerabilities are as follows:

  • One double free vulnerability that could allow for arbitrary code execution (CVE-2018-4990)
  • Seven heap overflow vulnerabilities that could allow for arbitrary code execution (CVE-2018-4947, CVE-2018-4948, CVE-2018-4966, CVE-2018-4968, CVE-2018-4978, CVE-2018-4982, CVE-2018-4984)
  • Thirteen use-after-free vulnerabilities that could allow for arbitrary code execution (CVE-2018-4946, CVE-2018-4952, CVE-2018-4954, CVE-2018-4958, CVE-2018-4959, CVE-2018-4961, CVE-2018-4971, CVE-2018-4974, CVE-2018-4977, CVE-2018-4980, CVE-2018-4983, CVE-2018-4988, CVE-2018-4989)
  • One out-of-bounds write vulnerability that could allow for arbitrary code execution (CVE-2018-4950)
  • One security bypass vulnerability that could allow for information disclosure (CVE-2018-4979)
  • Nineteen out-of-bounds read vulnerabilities that could allow for information disclosure (CVE-2018-4949, CVE-2018-4951, CVE-2018-4955, CVE-2018-4956, CVE-2018-4957, CVE-2018-4960, CVE-2018-4962, CVE-2018-4963, CVE-2018-4964, CVE-2018-4967, CVE-2018-4969, CVE-2018-4970, CVE-2018-4972, CVE-2018-4973, CVE-2018-4975, CVE-2018-4976, CVE-2018-4981, CVE-2018-4986, CVE-2018-4985)
  • One type confusion that could allow for arbitrary code execution (CVE-2018-4953)
  • One untrusted pointer dereference that could allow for arbitrary code execution (CVE-2018-4987)
  • One memory corruption vulnerability that could allow for information disclosure (CVE-2018-4965)
  • One NTLM SSO hash theft vulnerability that could allow for information disclosure (CVE-2018-4993)
  • One HTTP POST new line injection via XFA submission that could allow for security bypass (CVE-2018-4994)

Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

RECOMENDATIONS:

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 visit websites or follow links provided by unknown or untrusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.
  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES:

CVE:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4946 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4947 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4948 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4949 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4950 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4951 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4952 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4953 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4954 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4955 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4956 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4957 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4958 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4959 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4960 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4961 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4962 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4963 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4964 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4965 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4966 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4967 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4968 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4969 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4970 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4971 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4972 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4973 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4974 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4975 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4976 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4977 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4978 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4979 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4980 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4981 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4982 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4983 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4984 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4985 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4986 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4987 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4988 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4989 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4990 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4993 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4994

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