Known exploited vulnerability
CVE-2023-45727
The short answer
CVE-2023-45727 affects North Grid Corporation Proself Enterprise/Standard Edition and is rated high (CVSS 7.5). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-12-03: attackers are using it, so patch it first.
What it is
Proself Enterprise/Standard Edition Ver5.62 and earlier, Proself Gateway Edition Ver1.65 and earlier, and Proself Mail Sanitize Edition Ver1.08 and earlier allow a remote unauthenticated attacker to conduct XML External Entity (XXE) attacks. By processing a specially crafted request containing malformed XML data, arbitrary files on the server containing account information may be read by the attacker.
Weakness: CWE-611.
Severity
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploited (CISA KEV)
Yes, since Dec 3, 2024
Federal due date Dec 24, 2024
EPSS, next 30 days
4.8%
Higher than 92% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
Proself Enterprise/Standard Edition, Proself Gateway Edition, Proself Mail Sanitize Edition, proself. NVD's record lists the exact affected versions.
References
- jvn.jp/en/jp/JVN95981460/ Third Party Advisory
- www.proself.jp/information/153/ Vendor Advisory
- jvn.jp/en/jp/JVN95981460/ Third Party Advisory
- www.proself.jp/information/153/ Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-45727 US Government Resource
Questions
Is CVE-2023-45727 being exploited?
Yes. CISA added CVE-2023-45727 to its Known Exploited Vulnerabilities catalog on 2024-12-03, with a federal remediation due date of 2024-12-24.
How do I fix CVE-2023-45727?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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