Multiple vulnerabilities in Backup Exec

1) Heap-based buffer overflow

EUVDB-ID: #VU42676

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2013-4575

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the utility program in the Linux agent in Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2. A remote attacker can use unspecified vectors. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Backup Exec: 2010 - 2012

External links

http://osvdb.org/95938
http://www.securityfocus.com/bid/61485
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20130801_00

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site scripting

EUVDB-ID: #VU42677

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2013-4676

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 when processing vectors involving a (1) custom-reports generation page, (2) Storage Devices creation page, or (3) jobs creation page in the management console; or (4) a Backup Exec server-management page in the beutility console. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Backup Exec: 2010_r3 - 2012

External links

http://osvdb.org/95941
http://osvdb.org/95942
http://www.securityfocus.com/bid/61486
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20130801_00

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU42678

Risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:L/AC:L/PR:/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-4677

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local #AU# to read and manipulate data.

Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 uses weak permissions (Everyone: Read and Everyone: Change) for backup data files, which allows local users to obtain sensitive information or modify the outcome of a restore via direct access to these files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Backup Exec: 2010 - 2012

External links

http://osvdb.org/95939
http://www.securityfocus.com/bid/61487
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20130801_00

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Information disclosure

EUVDB-ID: #VU42679

Risk: Low

CVSSv3.1: 1.3 [CVSS:3.1/AV:A/AC:L/PR:/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-4678

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote #AU# to gain access to sensitive information.

The NDMP protocol implementation in Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 allows remote authenticated users to obtain sensitive host-version information via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Backup Exec: 2010 - 2012

External links

http://www.securityfocus.com/bid/61488
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20130801_00

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.