Public ICS Disclosures – Week of 4-17-21

This week we have two vendor NAME:WRECK disclosures from Carestream and Draeger. We also have nine other vendor disclosures from Aruba Networks (2), Bosch, Advantech, Meinberg, QNAP, VMWare, and Yokogawa (2).

NAME:WRECK Advisories

Carestream published an advisory discussing the NAME:WRECK vulnerabilities. It also addresses the Urgent/11, Ripple20, Amnesia:33, Number:Jack vulnerabilities. Carestream provides generic mitigation measures.

Draeger published and advisory discussing the NAME:WRECK vulnerabilities. Draeger reports that none of its medical devices use the affected stacks.

Aruba Advisories

Aruba published an advisory describing eleven vulnerabilities in their AirWave Management Platform. The vulnerabilities was reported by rceman and harishkumar0394 via BugCrowd, Daniel Jensen, Erik de Jong, and Vidya Bhaskar Tripathi. Aruba has a new version that mitigates the vulnerabilities. There is no indication that researchers have been provided an opportunity to verify the efficacy of the fix.

The eleven reported vulnerabilities are:

• Authentication bypass - CVE-2021-25147,

• Deserialization (2) - CVE-2021-25151 and CVE-2021-25152,

• SQL injection - CVE-2021-25153,

• Privilege escalation - CVE-2021-25154,

• Authenticated XML external entity (3) - CVE-2021-25163, CVE-2021-25164, and CVE-2021-25165,

• Authenticated remote command injection (2) - CVE-2021-25166 and CVE-2021-25167, and

• Authenticated open redirect - CVE-2021-29137

Aruba published an advisory describing ten vulnerabilities in their ClearPass Policy Manager. The vulnerabilities were reported by Luke Young, hateshape and S4thi5h via BugCrowd, Daniel Jensen, and Xavier Danest. Aruba has patches that mitigate the vulnerabilities. There is no indication that the researchers have been provided an opportunity to verify the efficacy of the fix.

The ten reported vulnerabilities are:

• Unauthenticated server-side request forgery - CVE-2021-29145,

• Authenticated stored cross-site scripting (3) - CVE-2021-29139, CVE-2021-29142, and CVE-2021-29146,

• Unauthenticated XML external entities - CVE-2021-29140,

• Privilege escalation - CVE-2020-7123,

• Authenticated information disclosure - CVE-2021-29138,

• Authenticated command injection - CVE-2021-29147, and

• Authenticated retrieval of sensitive information (2) - CVE-2021-29141 and CVE-2021-29144,

Bosch Advisory

Bosch published an advisory describing 14 vulnerabilities in their Rexroth IoT Gateway and ctrlX CORE products. These are third-party (operating system libraries and the Linux kernel) vulnerabilities. Bosch has updates for one of the affected products, others are pending.

The 14 reported vulnerabilities are:

• Out-of-bounds read - CVE-2020-27815,

• Null pointer dereference - CVE-2020-27830,

• Path traversal - CVE-2020-28374,

• Release of invalid pointer or reference - CVE-2020-28941,

• Improper restriction of operations within the bounds of a memory buffer - CVE-2020-29568,

• Unchecked return value - CVE-2020-29569,

• Use after free (3) - CVE-2020-29660, CVE-2020-29661, and CVE-2021-20232,

• Incorrect default permissions (2) - CVE-2021-24031 and CVE-2021-24032,

• Incorrect conversion between numeric types (2) - CVE-2021-27218 and CVE-2021-27219 (exploit), and

• Insufficient information - CVE-2021-27803

Advantech Advisory

Incibe-CERT published an advisory describing two file parsing vulnerabilities in the Advantech WebAccess/HMI designer product. The vulnerabilities were reported (here and here) by kimiya via the Zero Day initiative. Advantech is working on mitigation measures.

NOTE: This is likely to be reported by NCCIC-ICS this coming week.

Meinberg Advisory

Meinberg published an advisory describing seven vulnerabilities in their LANTIME products. Meinberg has updated firmware versions to mitigate the vulnerabilities.

The seven reported vulnerabilities are:

• CA certificate check bypass - CVE-2021-3450 (OpenSSL),

• Null pointer dereference - CVE-2021-23840, CVE-2021-23841 (both OpenSSL),

• API overflow of output length - CVE-2021-23840 (OpenSSL),

• Heap-based buffer overflow - CVE-2021-3156 (exploits) (SUDO),

• Cross-site scripting – no CVE, and

• Command line injection – no CVE

QNAP Advisory

QNAP published an advisory describing an improper authorization vulnerability in their NAS running HBS 3 Hybrid Backup Sync. The vulnerability was reported by ZUSO ART. QNAP has a new version that mitigates the vulnerability.

VMWare Advisory

VMWare published an advisory describing a privilege escalation vulnerability in their NSX-T products. The vulnerability is self-reported. VMWare has patches available to mitigate the vulnerability.

Yokogawa Advisories

Yokogawa published an advisory discussing the Meltdown/SPECTRE vulnerabilities in their CENTUM VP Controller FCS products. Yokogawa has new versions that mitigate the vulnerabilities in some of their affected products.

Yokogawa published an advisory discussing the Microsoft® VB6 runtime vulnerabilities. Yokogawa has new versions that mitigate the vulnerabilities.

15 Advisories Published – 4-13-21

Today CISA’s NCCIC-ICS published 15 control systems security advisories for products Siemens (12), JTEKT, Advantech, and Schneider Electric. One of the Siemens advisories also affects products from Milestone and another also affects products from PKE.

Milestone Advisory

This advisory describes a use of hard-coded cryptographic key in the Siemens Siveillance (Milestone) Video Open Network Bridge (ONVIF). The vulnerability was reported by Milestone PSIRT. Siemens has a hot fix and Milestone has an update to mitigate the vulnerability.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerability to allow an authenticated remote attacker to retrieve and decrypt all user credentials stored on the ONVIF server.

Nucleus Advisory #1

This advisory describes a use of insufficiently random variables vulnerability in the Siemens Nucleus DNS module. This is one of the NAME:WRECK DNS vulnerabilities reported by Forescout and JSOF. Siemens has generic workarounds to mitigate the vulnerability.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit this vulnerability to allow an attacker to poison the DNS cache or spoof DNS resolving.

SIMOTICS Advisory

This advisory describes four vulnerabilities in the Siemens SIMOTICS CONNECT 400. The vulnerabilities were self-reported. These are NAME:WRECK vulnerabilities in the third-party Mentor DNS Module. Siemens has a new version that mitigates the vulnerabilities.

The four reported vulnerabilities are:

• Improper null termination - CVE-2020-27736,

• Out-of-bounds read - CVE-2020-27737, and

• Access of memory location after end of buffer - CVE-2020-27738 and CVE-2021-25677

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerabilities to allow an attacker to poison the DNS cache or spoof DNS resolving.

Tecnomatix Advisory

This advisory describes an out-of-bounds write in the Siemens Tecnomatix RobotExpert. The vulnerability was reported by Francis Provencher via the Zero Day Initiative. Siemens has a new version that mitigates the vulnerability. There is no indication that Provencher has been provided an opportunity to verify the efficacy of the fix.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerability to allow remote code execution.

TIM Advisory

This advisory describes 14 vulnerabilities in the Siemens TIM 4R-IE. This is a third-party vulnerability (ntp.d in SNTP). The vulnerabilities are self-reported.

The 14 reported vulnerabilities are:

• Incorrect type conversion or cast - CVE-2015-5219,

• Improper input validation (4) - CVE-2015-7855 (exploit), CVE-2015-7705, CVE-2015-8138, and CVE-2016-1547,

• Improper authentication (2) - CVE-2015-7871 and CVE-2016-4953

• Security features - CVE-2015-7973,

• Null pointer dereference - CVE-2015-7977,

• Data processing errors (2) - CVE-2015-7979 and CVE-2016-1548,

• Exposure of sensitive information to an unauthorized actor - CVE-2016-1550, and

• Race condition - CVE-2016-4954

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerabilities to compromise the confidentiality, integrity, and availability of the device.

PKE Advisory

This advisory describes twelve vulnerabilities in the Siemens (and PKE) Control Center Server (CCS). The vulnerabilities were reported by Raphaël Rigo of Airbus Security Lab. Siemens (and PKE) has new versions that mitigate the vulnerabilities. There is no indication that Rigo has been provided an opportunity to verify the efficacy of the fix.

The 12 reported vulnerabilities are:

• Cleartext storage of sensitive information in GUI - CVE-2019-13947,

• Improper authentication (2) - CVE-2019-18337 and CVE-2019-18341

• Relative path traversal - CVE-2019-18338,

• Use of a broken or risky cryptographic algorithm - CVE-2019-18340,

• Exposed dangerous method or function - CVE-2019-18342,

• Path traversal - CVE-2019-19290,

• Cleartext storage in a file or on a disk - CVE-2019-19291,

• SQL Injection - CVE-2019-19292,

• Cross-site scripting (2) - CVE-2019-19293 and CVE-2019-19294, and

• Insufficient logging - CVE-2019-19295

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit these vulnerabilities to allow an attacker to read and write arbitrary files and sensitive data and execute commands and arbitrary code.

NOTE: These vulnerabilities were removed from earlier Siemens Advisories, SSA-761617 and SSA-844761.

LOGO! Advisory

This advisory describes two vulnerabilities in the Siemens LOGO! engineering software products. The vulnerabilities were reported by Mashav Sapir from Claroty. Siemens provides generic workarounds to mitigate the vulnerabilities.

The two reported vulnerabilities are:

• Path traversal - CVE-2020-25243, and

• Uncontrolled search path element - CVE-2020-25244

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerability to allow a local attacker to take over the system where the software is installed.

NOTE: Someone slipped up on the listing of ‘Equipment’ and ‘Vulnerability’ in the ‘Executive Summary’ section of the advisory.

SINEMA Advisory

This advisory describes two vulnerabilities in the Siemens SINEMA Remote Connect Server. These are third-party vulnerabilities (libxml2). Siemens has a new version that mitigates the vulnerabilities.

The two reported vulnerabilities are:

• Missing release of resource after effective lifetime - CVE-2019-19956, and

• Infinite loop - CVE-2020-7595

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit these vulnerabilities to allow an attacker to cause a memory leak or an infinite loop situation resulting in a denial-of-service condition.

SCALANCE Advisory

This advisory describes two vulnerabilities in the Siemens Web Server of SCALANCE X200. The vulnerabilities are self-reported. Siemens has a new version that mitigates the vulnerabilities.

The two reported vulnerabilities are:

• Heap-based buffer overflow - CVE-2021-25668, and

• Stack-based buffer overflow - CVE-2021-25669

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit these vulnerabilities to cause a buffer overflow condition resulting in remote code execution.

Solid Edge Advisory

This advisory describes five vulnerabilities in the Siemens Solid Edge software tools. The vulnerabilities were reported by Francis Provencher and rgod via ZDI. Siemens has updates that mitigate the vulnerabilities. There is no indication that the researchers have been provided an opportunity to verify the efficacy of the fix.

The five reported vulnerabilities are:

• Out-of-bounds write - CVE-2020-28385, CVE-2021-25678, CVE-2021-27380,

• Untrusted pointer dereference - CVE-2020-26997, and

• Stack-based buffer overflow - CVE-2021-27382

NCCIC-ICS reports that an uncharacterized attacker with uncharacterized access could exploit the vulnerabilities to lead to a crash, arbitrary code execution, or data extraction on the target host system.

Nucleus Advisory #2

This advisory describes two infinite loop vulnerabilities in the Siemens Nucleus products. The vulnerabilities were self-reported. Siemens has a new version for one of the affected products that mitigates the vulnerabilities.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerabilities to cause a denial-of-service condition.

Nucleus Advisory #3

This advisory describes two vulnerabilities in the Siemens Nucleus DNS module. These are two of the NAME:WRECK DNS vulnerabilities reported by Forescout and JSOF. Siemens provides generic work arounds to mitigate the vulnerabilities.

The two reported vulnerabilities are:

• Out-of-bounds write - CVE-2020-15795, and

• Use of out-of-range pointer offset - CVE-2020-27009

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerabilities to allow a denial-of-service condition or for the execution of code remotely.

NOTE: There were two additional Siemens’ advisories published today that were not covered by NCCIC-ICS. If they are not covered on Thursday, I will address them on Saturday.

JTEKT Advisory

This advisory describes an improper resource shutdown or release vulnerability in the JTEKT TOYOPUC products. The vulnerability was reported by Younes Dragoni from Nozomi Networks. JTEKT has provided generic mitigation measures.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerability to allow an unauthorized user to stop Ethernet communications between devices from being established.

Advantech Advisory

This advisory describes an incorrect permission assignment for critical resources in the Advantech WebAccess/SCADA. The vulnerability was reported by Chizuru Toyama of TXOne IoT/ICS Security Research Labs of Trend Micro. Advantech has a new version that mitigates the vulnerability. There is no indication that Toyama has been provided an opportunity to verify the efficacy of the fix.

NCCIC-ICS reports that a relatively low-skilled attacker could remotely exploit the vulnerability to allow an attacker to login as an ‘admin’ to fully control the system.

Schneider Advisory

This advisory describes an improper restriction of XML external entity reference vulnerability in the Schneider SoMachine Basic products. The vulnerability was reported by Gjoko Krstikj of Applied Risk. Schneider has a new product that replaces the affected product and has updated the mitigation measures.

NOTE 1: This is actually based upon an update to a Schneider advisory that was published on May 22^nd, 2018.

NOTE 2: Schneider also published two advisories and two other updates today. If they are not covered by NCCIC-ICS on Thursday, I will address them here on Saturday.