There are 212 posts filed in US (this is page 9 of 22).
Microsoft has released updates to address multiple vulnerabilities in Microsoft software. A cyber threat actor can exploit some of these vulnerabilities to take control of an affected system.
CISA encourages users and administrators to review Microsoft’s October 2023 Security Update Guide and apply the necessary updates.
CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation:
These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Note: To view other newly added vulnerabilities in the catalog, click on the arrow in the “Date Added to Catalog” column—which will sort by descending dates.
Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.
Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.
Apple has released security updates to address vulnerabilities in iOS and iPadOS. A cyber threat actor could exploit these vulnerabilities to take control of an affected system.
CISA encourages users and administrators to review the following advisory and apply the necessary updates: iOS 17.0.3 and iPadOS 17.0.3.
Successful exploitation of this vulnerability could allow an attacker to retrieve sensitive information about the cameras managed by the platform and its users.
The following versions of Qoginfy NiceVision, an IP-video surveillance system, are affected:
3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798
Qognify NiceVision versions 3.1 and prior are vulnerable to exposing sensitive information using hard-coded credentials. With these credentials an attacker can retrieve information about the cameras, user information, and modify database records.
CVE-2023-2306 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Roni Gavrilov of OTORIO reported this vulnerability to CISA.
Qognify has released NiceVision v3.2 UP2 HF2. The latest release is available to customers who have an active SMA (Service Maintenance Agreement) with Qognify.
For more information contact Qognify.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
Atlassian released a security advisory to address a vulnerability affecting Confluence Data Center and Confluence Server. A remote cyber threat actor could exploit this vulnerability to take control of an affected system.
CISA encourages users and administrators to review the following advisory and apply the necessary updates: CVE-2023-22515 – Privilege Escalation Vulnerability in Confluence Data Center and Server.
CISA released three Industrial Control Systems (ICS) advisories on October 5, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.
CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations.
Successful exploitation of these vulnerabilities by an attacker could have a high impact on availability, integrity, and confidentiality of the targeted devices.
The following Hitachi Energy products and versions are affected:
3.2.1 INCORRECT CALCULATION CWE-682
In Expat (aka libexpat) before 2.4.3, a left shift by 29(or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
CVE-2021-45960 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
3.2.2 INTEGER OVERFLOW OR WRAPAROUND CWE-190
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
CVE-2021-46143 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
3.2.3 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Vulnerable code using addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22822 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.4 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Vulnerable code using build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22823 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.5 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Vulnerable code using defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22824 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.6 INTEGER OVERFLOW OR WRAPAROUND CWE-190
The lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22825 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
3.2.7 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Vulnerable code using nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow
CVE-2022-22826 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H ).
3.2.8 INTEGER OVERFLOW OR WRAPAROUND CWE-190
An insecure direct object reference for the file-download URL in Synametrics SynaMan before 5.0 allows a remote attacker to access unshared files via a modified base64-encoded filename string.
CVE-2022-22827 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
3.2.9 INTEGER OVERFLOW OR WRAPAROUND CWE-190
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
CVE-2022-25314 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
3.2.10 INTEGER OVERFLOW OR WRAPAROUND CWE-190
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames
CVE-2022-25315 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.11 IMPROPER ENCODING OR ESCAPING OF OUTPUT CWE-116
Vulnerable code in xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
CVE-2022-25235 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.12 EXPOSURE OF RESOURCE TO WRONG SPHERE CWE-668
Vulnerable code in xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
CVE-2022-25236 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.13 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES
CVE-2022-23852 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.14 INTEGER OVERFLOW OR WRAPAROUND CWE-190
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVE-2022-23990 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Hitachi Energy reported these vulnerabilities to CISA.
Hitachi energy recommends the following actions:
Hitachi Energy’s general mitigation factors:
Security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system.
For more information, please visit Hitachi Energy’s Advisory.
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
Today, CISA and the National Security Agency (NSA) published Identity and Access Management: Developer and Vendor Challenges, authored by the Enduring Security Framework (ESF), a CISA- and NSA-led working panel that includes a public-private cross-sector partnership. ESF aims to address risks that threaten critical infrastructure and national security systems.
This publication, which follows ESF’s Identity and Access Management Recommended Best Practices Guide for Administrators, assesses and addresses challenges developers and technology manufacturers face in identity and access management (IAM). The guidance specifically addresses technology gaps that limit the adoption and secure employment of multifactor authentication (MFA) and single sign-on (SSO) technologies within organizations.
Although the publication primarily addresses challenges facing large organizations, it also provides recommendations applicable to smaller organizations. CISA encourages cybersecurity defenders to review this guidance and to speak to their software vendors about implementing its recommendations.
