Headline
Microsoft Patch Tuesday for September 2023 — Unusually low 5 critical vulnerabilities included in Microsoft Patch Tuesday, along with two zero-days
Microsoft disclosed 65 vulnerabilities across its suite of products and software Tuesday, only five of which are considered critical, which is very low compared to Microsoft’s usual security updates.
Tuesday, September 12, 2023 16:09
Microsoft disclosed 65 vulnerabilities across its suite of products and software Tuesday, only five of which are considered critical, which is very low compared to Microsoft’s usual security updates.
However, there are two issues disclosed and patched this month that have already been exploited in the wild.
Fifty-six of the vulnerabilities included in this month’s Patch Tuesday are considered “important,” according to Microsoft, while two are of “moderate” severity. One remote code execution vulnerability in Microsoft Exchange Server, CVE-2023-36756, was meant to be included in August’s security update but was mistakenly excluded. Users should ensure the August 2023 security update for Exchange is already downloaded to remediate this issue.
One of the vulnerabilities adversaries are already exploiting in the wild is CVE-2023-36802, an elevation of privilege vulnerability in Microsoft Streaming Service, a corporate video sharing platform integrated into SharePoint and Office 365. An adversary who successfully exploits this vulnerability can gain SYSTEM privileges.
Additionally, CVE-2023-36761 has already been exploited in the wild and proof of concept code is publicly available. Although it is not clear how, exactly, an attacker could exploit this vulnerability in Microsoft Word, Microsoft states that the Preview Pane is also a potential attack vector in this case. If successful, an adversary could view NTLM hashes.
Another Word vulnerability included in Tuesday’s security update is CVE-2023-36762, which could lead to arbitrary code execution. An adversary could exploit this issue by tricking a user into opening a specially crafted Word document. It’s common for attackers to use this method and try to trick users into opening the document as an email attachment.
There are also four remote code execution vulnerabilities in Microsoft Visual Studio — CVE-2023-36794, CVE-2023-36796, CVE-2023-36792 and CVE-2023-36793 — that could be triggered if a user opens a specially crafted, weaponized file. This type of attack is particularly notable, as Google’s Threat Analysis Group reported that the high-profile Lazarus Group APT is using this method to target security developers and researchers on social media.
Lastly, we also believe CVE-2023-36745, CVE-2023-36756 and CVE-2023-36744 are worth highlighting. These are remote code execution vulnerabilities in Microsoft Exchange Server, which attackers are known to target as part of a variety of attacks.
A complete list of all the vulnerabilities Microsoft disclosed this month is available on its update page.
In response to these vulnerability disclosures, Talos is releasing a new Snort rule set that detects attempts to exploit some of them. Please note that additional rules may be released at a future date and current rules are subject to change pending additional information. Cisco Secure Firewall customers should use the latest update to their ruleset by updating their SRU. Open-source Snort Subscriber Rule Set customers can stay up to date by downloading the latest rule pack available for purchase on Snort.org.
The rules included in this release that protect against the exploitation of many of these vulnerabilities are 57193, 62385-62388, 62394-62396, 62401, 300687-300688.
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Hello everyone! On the last day of September, I decided to record another retrospective episode on how my Vulnerability Management month went. Alternative video link (for Russia): https://vk.com/video-149273431_456239136 September was quite a busy month for me. Vulnerability Management courses I participated in two educational activities. The first one is an on-line cyber security course for […]
Plus: Mozilla patches 10 Firefox bugs, Cisco fixes a vulnerability with a rare maximum severity score, and SAP releases updates to stamp out three highly critical flaws.
With the popularity of pay-for-shoutout services like Cameo, it’d be fairly easy for someone to develop a convincing enough deepfake of a player and try to steal someone’s money by saying they could prank their fantasy football league for $50.
Microsoft has released software fixes to remediate 59 bugs spanning its product portfolio, including two zero-day flaws that have been actively exploited by malicious cyber actors. Of the 59 vulnerabilities, five are rated Critical, 55 are rated Important, and one is rated Moderate in severity. The update is in addition to 35 flaws patched in the Chromium-based Edge browser since last month's
Categories: Business Categories: Exploits and vulnerabilities Categories: News Tags: Microsoft Tags: Adobe Tags: Android Tags: Apple Tags: Chrome Tags: SAP Tags: Exchange Tags: Visual Studio Tags: CVE-2023-36761 Tags: CVE-2023-36802 Tags: CVE-2023-29332 Tags: Azure Microsoft's September 2023 Patch Tuesday is another important one. It patches two vulnerabilities which are known to be actively exploited. (Read more...) The post Patch now! September Microsoft Patch Tuesday includes two actively exploited zero-days appeared first on Malwarebytes Labs.
Microsoft today issued software updates to fix at least five dozen security holes in Windows and supported software, including patches for two zero-day vulnerabilities that are already being exploited. Also, Adobe, Google Chrome and Apple iOS users may have their own zero-day patching to do.
# Microsoft Security Advisory CVE-2023-36792: .NET Remote Code Execution Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in Microsoft.DiaSymReader.Native.amd64.dll when reading a corrupted PDB file which may lead to remote code execution. This issue only affects Windows systems. **Note:** The vulnerabilities [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36792), [CVE-2023-36793]( https://www.cve.org/CVERecord?id=CVE-2023-36793), [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36794), [CVE-2023-36796]( https://www.cve.org/CVERecord?id=CVE-2023-36796) are all resolved by a single patch. Get [affected software](#affected-software) to resolve all of them. ## Discussion Discussion for...
# Microsoft Security Advisory CVE-2023-36794: .NET Remote Code Execution Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in Microsoft.DiaSymReader.Native.amd64.dll when reading a corrupted PDB file which may lead to remote code execution. This issue only affects Windows systems. **Note:** The vulnerabilities [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36792), [CVE-2023-36793]( https://www.cve.org/CVERecord?id=CVE-2023-36793), [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36794), [CVE-2023-36796]( https://www.cve.org/CVERecord?id=CVE-2023-36796) are all resolved by a single patch. Get [affected software](#affected-software) to resolve all of them. ## Discussion Discussion for...
# Microsoft Security Advisory CVE-2023-36793: .NET Remote Code Execution Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in Microsoft.DiaSymReader.Native.amd64.dll when reading a corrupted PDB file which may lead to remote code execution. This issue only affects Windows systems. **Note:** The vulnerabilities [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36792), [CVE-2023-36793]( https://www.cve.org/CVERecord?id=CVE-2023-36793), [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36794), [CVE-2023-36796]( https://www.cve.org/CVERecord?id=CVE-2023-36796) are all resolved by a single patch. Get [affected software](#affected-software) to resolve all of them. ## Discussion Discussion for...
# Microsoft Security Advisory CVE-2023-36796: .NET Remote Code Execution Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in Microsoft.DiaSymReader.Native.amd64.dll when reading a corrupted PDB file which may lead to remote code execution. This issue only affects Windows systems. **Note:** The vulnerabilities [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36792), [CVE-2023-36793]( https://www.cve.org/CVERecord?id=CVE-2023-36793), [CVE-2023-36792]( https://www.cve.org/CVERecord?id=CVE-2023-36794), [CVE-2023-36796]( https://www.cve.org/CVERecord?id=CVE-2023-36796) are all resolved by a single patch. Get [affected software](#affected-software) to resolve all of them. ## Discussion Discussion for...
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Microsoft Word Remote Code Execution Vulnerability
Microsoft Word Information Disclosure Vulnerability