Pexip security bulletins

The following security bulletins are published by Pexip for issues affecting Pexip Infinity, the Pexip Connect apps, and the VMR self-service portal.

Please contact your Pexip authorized support representative for more information about these issues. This list covers issues addressed in v31.0 and later. For issues addressed in v30.x or earlier, see our documentation for previous releases.

More information specific for each of the vulnerabilities can be found via the NIST National Vulnerability Database: http://nvd.nist.gov/.

Pexip Infinity

Each bulletin addresses a number of vulnerabilities in the operating system software used by Pexip Infinity. The bulletins include an assessment of the issues, the impact to the Pexip Infinity platform, and resolution details.

In the table below, "Severity" reflects the severity of the issue as calculated from the CVSS Base Score. "Risk" reflects the risk associated with each vulnerability in the context of the Pexip Infinity product environment.

Reference Description Severity Risk Updated Impacted versions Addressed in version
Multiple

Resolved minor issues: CVE-2020-36516, CVE-2021-32292, CVE-2022-20572, CVE-2022-3107, CVE-2022-3435, CVE-2022-3524, CVE-2022-3543, CVE-2022-3623, CVE-2022-3707, CVE-2022-4378, CVE-2022-48554, CVE-2023-0179, CVE-2023-0386, CVE-2023-0458, CVE-2023-0459, CVE-2023-0461, CVE-2023-0465, CVE-2023-0466, CVE-2023-0590, CVE-2023-1095, CVE-2023-1206, CVE-2023-1249, CVE-2023-1252, CVE-2023-1255, CVE-2023-1998, CVE-2023-20588, CVE-2023-20900, CVE-2023-22998, CVE-2023-23006, CVE-2023-23931, CVE-2023-2650, CVE-2023-2975, CVE-2023-31130, CVE-2023-31248, CVE-2023-3138, CVE-2023-32233, CVE-2023-3390, CVE-2023-3446, CVE-2023-36053, CVE-2023-3609, CVE-2023-3610, CVE-2023-3611, CVE-2023-3772, CVE-2023-3773, CVE-2023-3776, CVE-2023-38039, CVE-2023-3817, CVE-2023-38633, CVE-2023-39318, CVE-2023-39319, CVE-2023-4004, CVE-2023-40217, CVE-2023-4128, CVE-2023-4147, CVE-2023-4569, CVE-2023-4622, CVE-2023-4911

    October 2023   v33.0
CVE-2023-29331

A vulnerability exists in .NET when processing malicious X.509 client certificates that may consume excessive CPU and lead to a denial of service.

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 32.1

High High July 2023 27.0 - 32.0 32.1
CVE-2023-37225

Cross-site scripting vulnerability in legacy webapp ("Webapp1") when using preconfigured links.

CVSS3.1 base score: 8.3 (AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

Discussion: An attacker may achieve cross-site scripting by convincing a user to activate a crafted preconfigured link using the legacy Infinity Connect web app ("Webapp1").

  • Since Infinity v26, the default configuration enables the Content-Security-Policy response header, allowing the client to enforce the domains from which script contents may be fetched. These include the wildcard domains *.microsoft.com and *.office.com. An attacker able to control or host a script under these domains may cause the application to execute attacker-controlled code.
  • In Infinity v25, the Content-Security-Policy response header is disabled by default, but may be enabled on this software version via the security wizard. The Content-Security-Policy response header will include the wildcard domains *.microsoft.com and *.office.com. An attacker able to control or host a script under these domains may cause the application to execute attacker-controlled code.
  • In Infinity v18-24, the Content-Security-Policy response header is disabled by default, but may be enabled in these software versions via the security wizard. There are no wildcard domains present in the "script-src" section of the Content-Security-Policy response header in these versions.
  • In Infinity before v18, there is no support for the Content-Security-Policy response header and thus no domain-based restrictions on scripts are available.

Mitigation:

  • On Infinity v31, access to the webapp can be disabled via the Administrator interface (Web App > Web App Paths) by deselecting the Enabled option for webapp1.
  • Infinity v26 onwards allow the Administrator to configure the enabled state and contents of the Content-Security-Policy header via the Administrator interface (Platform > Global Settings > Security). Ensure that the Content-Security-Policy header is enabled and review local modifications to determine if further wildcard domains have been added (and, if they have, consider whether a non-wildcard domain could be used instead). Where the Pexip Scheduling Outlook Add-In is not in use, both *.microsoft.com and *.office.com may safely be removed from the Content-Security-Policy.
  • For Infinity v18-25, ensure that the Enable Content-Security-Policy for Conferencing Nodes setting in the security wizard has been configured to yes (it defaults to no in these software versions). Note, however, that the contents of the Content-Security-Policy response header are not configurable on these software versions.
  • For Infinity v5-17, there is no mitigation.

Resolution: Upgrade to Pexip Infinity 32.0. For deployments running Infinity v30.x and v31.x, contact your authorized Pexip support representative for a software bundle fix.

Credit: This issue was responsibly disclosed by https://github.com/40826d.

High High July 2023 5 through 31.3 32.0
Multiple

Resolved minor issues: CVE-2022-3515, CVE-2022-3736, CVE-2022-3924, CVE-2022-4203, CVE-2022-4304, CVE-2022-32221, CVE-2022-38725, CVE-2023-0464, CVE-2023-0465, CVE-2023-0466, CVE-2023-1255, CVE-2023-2650, CVE-2023-23916, CVE-2023-26463, CVE-2023-27537, CVE-2023-28484, CVE-2023-29469

    June 2023   32.0
CVE-2023-31455

Insufficient input validation in the RTCP implementation allows a remote attacker to trigger a software abort resulting in a denial of service.

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Discussion: A crafted RTCP payload allows a remote attacker to trigger a software abort resulting in a denial of service.

Mitigation: None

Resolution: Upgrade to Pexip Infinity 31.2

High High June 2023 All before 31.2 31.2
CVE-2023-31289

Insufficient input validation in the signalling implementation(s) allows a malicious attacker to trigger a software abort resulting in a denial of service.

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to v31.2

High High May 2023 1 through 31.1 31.2
CVE-2023-22809

The sudoedit command mishandles extra arguments, allowing a local attacker to append arbitrary entries to the list of files to process, leading to privilege escalation.

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: The sole non-system user account ("admin") is explicitly given privileges to allow escalation via sudo. Therefore, this vulnerability is only relevant as a mechanism to potentially escalate privileges after exploiting some other vulnerability to gain access to the system as an unprivileged user.

Resolution: Upgrade to Pexip Infinity v31.1

High Medium March 2023 All before 31.0 31.1
CVE-2023-0286

A type confusion vulnerability in the OpenSSL cryptography library allows an attacker to read memory contents or cause a software abort when CRL checking is enabled.

CVSS 3.1 base score: 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H)

Mitigation: No software shipped as part of Pexip Infinity is configured to use CRLs (as Infinity uses OCSP instead), therefore this vulnerability is only relevant if unsupported configuration or software changes have been made.

Resolution: Upgrade to Pexip Infinity v31.1

High

None March 2023 All before 31.0 31.1
CVE-2023-0215

Resource mismanagement in the OpenSSL cryptography library allows an attacker to trigger a use after free when processing ASN.1 data leading to a software abort.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity v31.1

High

None March 2023 All before 31.0 31.1
CVE-2022-40617

The strongSwan IPsec implementation allows remote attackers to cause a denial of service.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Strongswan is configured to only permit tunnel establishment by other nodes in the deployment. Further, ISAKMP traffic is restricted by the firewall such that traffic from source addresses outside the deployment is rejected.

Resolution: Upgrade to Pexip Infinity v31.1

High

Medium March 2023 All before 31.0 31.1
CVE-2022-40304

An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity v31.1

High

Medium March 2023 All before 31.0 31.1
CVE-2022-40303

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Components using this library enforce payload size limits before passing input data into libxml2. These size limits are significantly below that needed to be able to exploit this issue.

Resolution: Upgrade to Pexip Infinity v31.1

High None March 2023 All before 31.0 31.1
CVE-2022-2068

The c_rehash script does not properly sanitise shell metacharacters to prevent command injection, potentially allowing an attacker to execute arbitrary commands with the privileges of the script.

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: The c_rehash script is used during system upgrade when updating the built-in Certificate Authorities. The updated Certificate Authorities and script usage are part of the upgrade archive which is signed using keys known only to Pexip and thus ensures that the input data is trusted.

Resolution: Upgrade to Pexip Infinity v31.1

Critical

None March 2023 All before 31.0 31.1
CVE-2022-1941

A parsing vulnerability for the MessageSet type in the ProtocolBuffers implementation allows an attacker to cause a software abort.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: ProtocolBuffers are used when communicating with Google Meet. Other service types are not affected.

Resolution: Upgrade to Pexip Infinity v31.1

High

Low March 2023 19.0-31.0 31.1
CVE-2022-1587

An out-of-bounds read vulnerability in the PCRE2 library allows an attacker to cause a software abort.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity v31.1

High

Medium March 2023 All before 31.0 31.1
CVE-2022-1586

An out-of-bounds read vulnerability in the PCRE2 library allows an attacker to cause a software abort.

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity v31.1

High

Medium March 2023 All before 31.0 31.1
CVE-2022-1292

The c_rehash script does not properly sanitise shell metacharacters to prevent command injection, potentially allowing an attacker to execute arbitrary commands with the privileges of the script.

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: The c_rehash script is used during system upgrade when updating the built-in Certificate Authorities. The updated Certificate Authorities and script usage are part of the upgrade archive which is signed using keys known only to Pexip and thus ensures that the input data is trusted.

Resolution: Upgrade to Pexip Infinity v31.1

Critical None March 2023 All before 31.0 31.1
Multiple

Resolved minor issues: CVE-2022-43680, CVE-2022-43638, CVE-2022-42898, CVE-2022-42703, CVE-2022-42010, CVE-2022-41323, CVE-2022-40476, CVE-2022-39190, CVE-2022-39188, CVE-2022-38178, CVE-2022-38177, CVE-2022-36946, CVE-2022-36879, CVE-2022-36359, CVE-2022-35252, CVE-2022-34495, CVE-2022-34494, CVE-2022-32296, CVE-2022-32206, CVE-2022-32205, CVE-2022-32148, CVE-2022-28347, CVE-2022-28346, CVE-2022-27776, CVE-2022-27774, CVE-2022-26373, CVE-2022-22576, CVE-2022-20368, CVE-2022-4304, CVE-2022-3775, CVE-2022-3629, CVE-2022-3625, CVE-2022-3586, CVE-2022-3515, CVE-2022-3080, CVE-2022-3028, CVE-2022-2959, CVE-2022-2938, CVE-2022-2929, CVE-2022-2928, CVE-2022-2905, CVE-2022-2795, CVE-2022-2602, CVE-2022-2601, CVE-2022-2588, CVE-2022-2586, CVE-2022-2585, CVE-2022-1962, CVE-2022-1705, CVE-2022-1508, CVE-2022-1184, CVE-2021-46829, CVE-2021-46828, CVE-2021-33655, CVE-2021-29648, CVE-2021-26401, CVE-2021-4150, CVE-2021-4023, CVE-2021-3759, CVE-2021-3669

    March 2023   31.1

Connect app

Each bulletin addresses a number of vulnerabilities in the software used by the Connect apps. The bulletins include an assessment of the issues, the impact on the Connect app, and resolution details.

Bulletin Description Risk Updated Impacted versions Addressed in version
CVE-2022-2478

Use after free in PDF in Google Chrome prior to 103.0.5060.134 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect desktop app v1.12

High March 2023 Unknown 1.12
CVE-2022-2295

Type confusion in V8 in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect desktop app v1.12

High March 2023

Unknown

1.12
CVE-2022-2294

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect desktop app v1.12

High March 2023 Unknown 1.12
CVE-2022-2162

Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 103.0.5060.53 allowed a remote attacker to bypass file system access via a crafted HTML page.

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect desktop app v1.12

High

March 2023 Unknown 1.12
CVE-2022-2011

Use after free in ANGLE in Google Chrome prior to 102.0.5005.115 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect desktop app v1.12

High March 2023 Unknown 1.12
 

Resolved minor issue: CVE-2022-1867

 

  March 2023   1.12
CVE-2021-29655

Missing authenticity checks in application provisioning allow an attacker to cause the application to run untrusted code.

CVSS3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Connect app 1.8.0

Credit: This issue was responsibly disclosed by The UK's National Cyber Security Centre (NCSC)

High June 2021 All before 1.8.0 1.8.0
CVE-2021-29656

Missing checks in certificate allow list matching allow a remote attacker to compromise a TLS connection, extracting data and potentially causing remote code execution.

CVSS3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity Connect 1.8.0

Credit: This issue was responsibly disclosed by The UK's National Cyber Security Centre (NCSC)

High June 2021 All before 1.8.0 1.8.0

VMR self-service portal

Each bulletin addresses a number of vulnerabilities in the software used by the VMR self-service portal. The bulletins include an assessment of the issues, the impact on the VMR portal, and resolution details.

Bulletin Description Risk Updated Impacted versions Addressed in version
CVE-2023-40236

The Pexip VMR self-service portal before v3 uses the same SSH host keys across different customers' installations, which allows man-in-the-middle attackers to spoof fake instances by leveraging these keys.

CVSS 3.1 base score: 7.5 (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: Manually remove and regenerate the SSH host keys on each VMR Portal instance.

Resolution: Upgrade to VMR portal v3.

High October 2023 All prior to version 3 3