Multiple Vulnerabilities in Adobe Photoshop CC Could Allow for Arbitrary Code Execution (APSB19-44)

MS-ISAC ADVISORY NUMBER:

2019-083

DATE(S) ISSUED:

08/13/2019

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe Photoshop CC, the most severe of which could allow for arbitrary code execution. Adobe Photoshop CC is a graphics editor program. 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 this vulnerability 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:

• Photoshop CC 19.1.8 and earlier
• Photoshop CC 20.0.5 and earlier

RISK:

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Adobe Photoshop CC which could allow for arbitrary code execution. Details of these vulnerabilities are included below:

• Multiple heap corruption vulnerabilities that could allow for arbitrary code execution (CVE-2019-7978, CVE-2019-7980, CVE-2019-7985, CVE-2019-7990, CVE-2019-7993)
• Multiple type confusion vulnerabilities that could allow for arbitrary code execution (CVE-2019-7969, CVE-2019-7970, CVE-2019-7971, CVE-2019-7972, CVE-2019-7973, CVE-2019-7974, CVE-2019-7975)
• Multiple out of bound read vulnerabilities that could lead to memory leakage (CVE-2019-7977, CVE-2019-7981, CVE-2019-7987, CVE-2019-7991, CVE-2019-7992, CVE-2019-7995, CVE-2019-7996, CVE-2019-7997, CVE-2019-7998, CVE-2019-7999, CVE-2019-8000, CVE-2019-8001)
• Multiple command injection vulnerabilities that could allow for arbitrary code execution (CVE-2019-7968, CVE-2019-7989)
• Multiple out of bound write vulnerabilities that could allow for arbitrary code execution (CVE-2019-7976, CVE-2019-7979, CVE-2019-7982, CVE-2019-7983, CVE-2019-7984, CVE-2019-7986, CVE-2019-7988, CVE-2019-7994)

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 this vulnerability could have less impact than if it was configured with administrative rights.

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 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: