Multiple vulnerabilities in OpenOffice



Published: 2021-10-11
Risk High
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2021-28129
CVE-2021-33035
CVE-2021-40439
CVE-2021-41831
CVE-2021-41832
CVE-2021-41830
CWE-ID CWE-276
CWE-119
CWE-776
CWE-347
Exploitation vector Network
Public exploit N/A
Vulnerable software
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OpenOffice
Client/Desktop applications / Office applications

Vendor Apache Foundation

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Incorrect default permissions

EUVDB-ID: #VU57211

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28129

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions. The DEB package did not install using root, but instead used a userid and groupid of 500. A local user with the same identifier can escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.1.8

CPE2.3 External links

http://lists.apache.org/thread.html/rc9090ab48b4699494b63b35cd6d7414c52d665ecae12add3cdc56c9b%40%3Cusers.openoffice.apache.org%3E
http://lists.apache.org/thread.html/rc9090ab48b4699494b63b35cd6d7414c52d665ecae12add3cdc56c9b@%3Cusers.openoffice.apache.org%3E
http://lists.apache.org/thread.html/r9e72234dd662280fa1a3cca6164d3470a1dbc0d8e53e48ba27f787ce@%3Cannounce.apache.org%3E
http://www.openwall.com/lists/oss-security/2021/10/07/5

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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Buffer overflow

EUVDB-ID: #VU57210

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33035

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

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 when processing dBase/DBF files. A remote attacker can create a specially crafted DBF document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.0.0, 4.0.1, 4.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10

CPE2.3 External links

http://github.com/apache/openoffice/commit/efddaef0151af3be16078cc4d88c6bae0f911e56#diff-ea66e734dd358922aba12ad4ba39c96bdc6cbde587d07dbc63d04daa0a30e90f
http://lists.apache.org/thread.html/r929c0c6a53cad64a1007b878342756badbb05ddd9b8f31a6d0b424cb@%3Cannounce.apache.org%3E
http://lists.apache.org/thread.html/r1ab8532e11f41bc7ca057ac7e39cab25f2e1f9d5f4929788ae21c8b9@%3Cusers.openoffice.apache.org%3E
http://www.openwall.com/lists/oss-security/2021/10/07/3

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

3) XML Entity Expansion

EUVDB-ID: #VU57209

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40439

CWE-ID: CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to dependency on an old expat software version. A remote attacker can trick the victim to open a specially crafted ODF file and perform a denial of service (DoS) attack.

The vulnerability in expat is described as #VU42119 (CVE-2013-0340).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 1.1.2, 1.1.3, 1.1.4, 1.1.5, 3.4, 3.4.1, 4.0.0, 4.0.1, 4.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10

CPE2.3 External links

http://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E
http://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d@%3Cannounce.apache.org%3E
http://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702@%3Cusers.openoffice.apache.org%3E
http://www.openwall.com/lists/oss-security/2021/10/07/4

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

4) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU57208

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41831

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to incorrect signature verification. A remote attacker can manipulate the timestamp of signed documents.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.0.0, 4.0.1, 4.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10

CPE2.3 External links

http://lists.apache.org/thread.html/ra74d5057cdc781a36286a83e8bcbc90a7678f030ae73339c35dfc4f9%40%3Cusers.openoffice.apache.org%3E

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

5) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU57207

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41832

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to incorrect signature verification. A remote attacker can manipulate signed documents and macros to appear to come from a trusted source.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.0.0, 4.0.1, 4.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10

CPE2.3 External links

http://lists.apache.org/thread.html/rd3214a568b43dd335b5d558f521377f4bff750684dea18eb041fc1bb%40%3Cusers.openoffice.apache.org%3E

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

6) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU57206

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41830

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to incorrect signature verification. A remote attacker can manipulate signed documents and macros to appear to come from a trusted source.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.0.0, 4.0.1, 4.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.1.9, 4.1.10

CPE2.3 External links

http://lists.apache.org/thread.html/r97d287c88881aa581f1b18cb01e2cbedc4e6eae85958491acb89b12e%40%3Cusers.openoffice.apache.org%3E

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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



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