Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3791 JSA10952 - 2019-10 Security Bulletin: Junos OS: SRX Series: An attacker may be able to perform Man-in-the-Middle (MitM) attacks during app-id signature updates. (CVE-2019-0054) 10 October 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Juniper SRX Series Publisher: Juniper Networks Operating System: Juniper Impact/Access: Root Compromise -- Existing Account Modify Arbitrary Files -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-0060 CVE-2019-0058 CVE-2019-0055 CVE-2019-0054 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10952 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10953 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10956 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10959 Comment: This bulletin contains four (4) Juniper Networks security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- 2019-10 Security Bulletin: Junos OS: SRX Series: An attacker may be able to perform Man-in-the-Middle (MitM) attacks during app-id signature updates. (CVE-2019-0054) Article ID: JSA10952 Last Updated: 09 Oct 2019 Version: 4.0 Product Affected: This issue affects Junos OS 15.1X49. Affected platforms: SRX Series. Problem: An Improper Certificate Validation weakness in the SRX Series Application Identification (app-id) signature update client of Juniper Networks Junos OS allows an attacker to perform Man-in-the-Middle (MitM) attacks which may compromise the integrity and confidentiality of the device. This issue affects: Juniper Networks Junos OS 15.1X49 versions prior to 15.1X49-D120 on SRX Series devices. No other versions of Junos OS are affected. The following minimum configuration is required: services application-identification Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was found during internal product security testing or research. This issue has been assigned CVE-2019-0054 . Solution: The following software releases have been updated to resolve this specific issue: 15.1X49-D120, and all subsequent releases. This issue is being tracked as PR 1291665 which is visible on the Customer Support website. Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL). Workaround: Set the following command in the device for affected releases: set services application-identification download secure-download Implementation: Software Releases, patches and updates are available at https://www.juniper.net /support/downloads/ . Modification History: 2019-10-09: Initial Publication. Related Links: o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process o KB16765: In which releases are vulnerabilities fixed o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories o Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team o CVE-2019-0054 at cve.mitre.org o https://www.juniper.net/documentation/en_US/junos/topics/topic-map/ security-application-identification-overview.html CVSS Score: 6.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N) Risk Level: Medium Risk Assessment: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." ================================================================================= 2019-10 Security Bulletin: Junos OS: SRX Series: An attacker may cause flowd to crash by sending certain valid SIP traffic to a device with SIP ALG enabled. (CVE-2019-0055) Article ID: JSA10953 Last Updated: 09 Oct 2019 Version: 4.0 Product Affected: This issue affects Junos OS 12.3X48, 15.1X49, 17.3, 17.4. Affected platforms: SRX Series. Problem: A vulnerability in the SIP ALG packet processing service of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the device by sending specific types of valid SIP traffic to the device. In this case, the flowd process crashes and generates a core dump while processing SIP ALG traffic. Continued receipt of these valid SIP packets will result in a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D61, 12.3X48-D65 on SRX Series; 15.1X49 versions prior to 15.1X49-D130 on SRX Series; 17.3 versions prior to 17.3R3 on SRX Series; 17.4 versions prior to 17.4R2 on SRX Series. This issue only affects SRX Series devices where SIP ALG is enabled. The following minimum configuration is required: set security alg sip Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was seen during production usage. This issue has been assigned CVE-2019-0055 . Solution: The following software releases have been updated to resolve this specific issue: 12.3X48-D61, 12.3X48-D65, 15.1X49-D130, 17.3R3, 17.4R2, 18.1R1, and all subsequent releases. This issue is being tracked as PR 1329170 which is visible on the Customer Support website. Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL). Workaround: Disable SIP ALG if this is not needed, otherwise there are no viable workarounds for this issue. Implementation: Software Releases, patches and updates are available at https://www.juniper.net /support/downloads/ . Modification History: 2019-10-09: Initial Publication. Related Links: o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process o KB16765: In which releases are vulnerabilities fixed o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories o Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team o CVE-2019-0055 at cve.mitre.org o https://www.juniper.net/documentation/en_US/junos/topics/topic-map/ security-sip-alg.html CVSS Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Severity Level: High Severity Assessment: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." ================================================================================= 2019-10 Security Bulletin: Junos OS: SRX Series: A weakness in the Veriexec subsystem may allow privilege escalation. (CVE-2019-0058) Article ID: JSA10956 Last Updated: 09 Oct 2019 Version: 2.0 Product Affected: This issue affects Junos OS 12.3X48. Affected platforms: SRX Series. Problem: A vulnerability in the Veriexec subsystem of Juniper Networks Junos OS allowing an attacker to fully compromise the host system. A local authenticated user can elevate privileges to gain full control of the system even if they are specifically denied access to perform certain actions. This issue affects: Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D80 on SRX Series. This requires a local authenticated user to have shell privilege. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was found during internal product security testing or research. This issue has been assigned CVE-2019-0058 . Solution: The following software releases have been updated to resolve this specific issue: Junos OS: 12.3X48-D80 and all subsequent releases. This issue is being tracked as PR 975878 which is visible on the Customer Support website. Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL). Workaround: To reduce the risk of exploitation of this vulnerability, customers should limit access to the Junos shell to only trusted administrators and limit their actions to previously reviewed and agreed-upon commands and command arguments as part of a structured change management workflow. Shell commands which are run should be logged and reviewed as part of standard security practices. Implementation: Software Releases, patches and updates are available at https://www.juniper.net /support/downloads/ . Modification History: 2019-10-09: Initial Publication. Related Links: o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process o KB16765: In which releases are vulnerabilities fixed o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories o Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team o CVE-2019-0058 at cve.mitre.org CVSS Score: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) Severity Level: High Severity Assessment: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." ================================================================================= 2019-10 Security Bulletin: Junos OS: SRX Series: flowd process crash due to processing of specific transit IP packets (CVE-2019-0060) Article ID: JSA10959 Last Updated: 09 Oct 2019 Version: 3.0 Product Affected: This issue affects Junos OS 15.1X49, 18.2, 18.4. Affected platforms: SRX Series. Problem: The flowd process, responsible for forwarding traffic in SRX Series services gateways, may crash and restart when processing specific transit IP packets through an IPSec tunnel. Continued processing of these packets may result in an extended Denial of Service (DoS) condition. This issue only occurs when IPSec tunnels are configured. Systems without IPSec tunnel configurations are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: o 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180 on SRX Series; o 18.2 versions 18.2R2-S1 and later, prior to 18.2R3 on SRX Series; o 18.4 versions prior to 18.4R2 on SRX Series. The following example shows a sample IPSec tunnel configuration: [edit security ipsec] security-association manual-sa1 { ... } [edit interfaces es-0/1/0] ... family inet { ipsec-sa manual-sa1; Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was seen during production usage. This issue has been assigned CVE-2019-0060 . Solution: The following software releases have been updated to resolve this specific issue: 15.1X49-D171, 15.1X49-D180, 18.2R3, 18.4R2, 19.1R1, and all subsequent releases. This issue is being tracked as PR 1409277 which is visible on the Customer Support website. Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL). Workaround: There are no viable workarounds for this issue. Implementation: Software Releases, patches and updates are available at https://www.juniper.net /support/downloads/ . Modification History: 2019-10-09: Initial Publication. Related Links: o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process o KB16765: In which releases are vulnerabilities fixed o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories o Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team o CVE-2019-0060 at cve.mitre.org CVSS Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Risk Level: High Risk Assessment: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXZ6tgGaOgq3Tt24GAQgPSg/9FBFTCob72AJBQaJs/kCj9MARHqDZDt5z spL/HHrUinukh92YSm1/RthTUO3fBYfaQ251LYBdRA9jlJxlM4nwZUrZgIz2rdBz 0PhlWTszLKZIptWpJpD/+A0BkXTyfrFW7m5UQl+kaglZpneBhw+w+89UAcx2mEU2 YRkySJv/bEA9dTpRZjDCbTpHVuXzzrPgJuJ9a5Txtm9dsgSpl+cR03QEljaqoFa4 yBbv+19YhuRB2BT2okjGiuUhbt1m13wM2PWK0NXx6oS0+5ojLR9I5eRm5GrDoejm uPzjR0CnUa0H7MgOSHQfW6w+sLu8HwSDjYOrTHEh8V8YL7CvM3gncgbcbI0oXMPR kj6Tu90wigfSMA9+3/hHKbFiGQaeQT5xiz3Cm5rHMWFF7e3jOoQiTfUrpUrpB+z9 DlDHE/M5sOQxzFq8MTMemFYnK4ErSQJwXHJ4lklturJ/3apHkqrknrKK19+3EZ1G tp81m4YsKdGYgF1H5lBqBJeJhq7dASz3EsuitCkbMXFhjmigZi9TiukS1Mbuf4vo vxTDy0PtnloXSXMgT07qhUdzhlX/b3pry5/bhw+pqQOCGMLU1DGkaENBjJNfY2nY NgfnP1aOqbgmWM+gpecuLd4MP13LVt5XgGuFTHBNKjBNykPU0SM6jRAmKYDmGx1f yPq1nqoawaA= =9LIz -----END PGP SIGNATURE-----