Atlassian Confluence Data Center and Server update for third-party software

Published: 2023-12-12 | Updated: 2024-09-27

Risk	High
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2020-25649 CVE-2022-28366 CVE-2022-29546 CVE-2022-24839 CVE-2023-44487 CVE-2021-31684 CVE-2023-3635 CVE-2023-5072
CWE-ID	CWE-611 CWE-20 CWE-400 CWE-681 CWE-770
Exploitation vector	Network
Public exploit	Vulnerability #5 is being exploited in the wild.
Vulnerable software Subscribe	Confluence Data Center Server applications / Other server solutions Atlassian Confluence Server Server applications / Web servers
Vendor	Atlassian

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) XML External Entity injection

EUVDB-ID: #VU48979

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25649

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify information on the system.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and modify information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.

2) Input validation error

EUVDB-ID: #VU77777

Risk: Low

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

CVE-ID: CVE-2022-28366

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of crafted Processing Instruction (PI) input. A remote attacker can trick the victim to visit a specially crafted web page and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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) Input validation error

EUVDB-ID: #VU77778

Risk: Low

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

CVE-ID: CVE-2022-29546

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when parsing the Processing Instruction (PI) data. A remote attacker can trick the victim to open a specially crafted web page and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.

4) Improper input validation

EUVDB-ID: #VU65486

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24839

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within the Centralized Third Party Jars (NekoHTML) component in Oracle WebLogic Server. A remote non-authenticated attacker can exploit this vulnerability to perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.

5) Resource exhaustion

EUVDB-ID: #VU81728

Risk: High

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-44487

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: Yes

Description

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

The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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?

Yes. This vulnerability is being exploited in the wild.

6) Improper input validation

EUVDB-ID: #VU65499

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31684

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within indexOf() function of JSONParserByteArray. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.

7) Incorrect Conversion between Numeric Types

EUVDB-ID: #VU80783

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3635

CWE-ID: CWE-681 - Incorrect Conversion between Numeric Types

Exploit availability: No

Description

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

The vulnerability exists due to GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.

8) Allocation of Resources Without Limits or Throttling

EUVDB-ID: #VU82276

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5072

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

Exploit availability: No

Description

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

The vulnerability exists due to allocation of resources without limits or throttling. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.0.1 - 8.7.0

Atlassian Confluence Server: 7.0.1 - 8.6.1

CPE2.3

External links

http://confluence.atlassian.com/security/security-bulletin-december-12-2023-1319249520.html

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.