Vulnerability-Lookup

CVE-2025-34252 (GCVE-0-2025-34252)

Vulnerability from cvelistv5 – Published: 2025-10-07 21:01 – Updated: 2025-10-09 16:58

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. This vulnerability has been reassigned as CVE-2017-20203 ( https://www.cve.org/CVERecord?id=CVE-2017-20203 ) to have the year of the CVE correspond to the year of public disclosure.

Replaced by CVE-2017-20203

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FKIE_CVE-2025-34252

Vulnerability from fkie_nvd - Published: 2025-10-07 21:15 - Updated: 2025-10-09 17:15

Severity

Summary

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. This vulnerability has been reassigned as CVE-2017-20203 ( https://www.cve.org/CVERecord?id=CVE-2017-20203 ) to have the year of the CVE correspond to the year of public disclosure.

References

	URL	Tags

Impacted products

	Vendor	Product	Version

JSON

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  "descriptions": [
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  "lastModified": "2025-10-09T17:15:58.827",
  "metrics": {},
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GHSA-R7VF-6C3R-53C3

Vulnerability from github – Published: 2025-10-07 21:31 – Updated: 2025-10-09 18:30

Details

NetSarang Xmanager Enterprise 5.0 Build 1232, Xmanager 5.0 Build 1045, Xshell 5.0 Build 1322, Xftp 5.0 Build 1218, and Xlpd 5.0 Build 1220 contain a malicious nssock2.dll that implements a multi-stage, DNS-based backdoor. The dormant library contacts a C2 DNS server via a specially crafted TXT record for a month‑generated domain. After receiving a decryption key, it then downloads and executes arbitrary code, creates an encrypted virtual file system (VFS) in the registry, and grants the attacker full remote code execution, data exfiltration, and persistence. NetSarang released builds for each product line that remediated the compromise: Xmanager Enterprise Build 1236, Xmanager Build 1049, Xshell Build 1326, Xftp Build 1222, and Xlpd Build 1224. Kaspersky Lab identified an instance of exploitation in the wild in August 2017.

Severity

9.5 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34252"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-506"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T21:15:38Z",
    "severity": "CRITICAL"
  },
  "details": "NetSarang Xmanager Enterprise 5.0 Build 1232,\u00a0Xmanager 5.0 Build 1045,\u00a0Xshell 5.0 Build 1322,\u00a0Xftp 5.0 Build 1218, and Xlpd 5.0 Build 1220 contain a malicious nssock2.dll that implements a multi-stage, DNS-based backdoor. The dormant library contacts a C2 DNS server via a specially crafted TXT record for a month\u2011generated domain. After receiving a decryption key, it then downloads and executes arbitrary code, creates an encrypted virtual file system (VFS) in the registry, and grants the attacker full remote code execution, data exfiltration, and persistence. NetSarang released builds for each product line that remediated the compromise: Xmanager Enterprise Build 1236, Xmanager Build 1049, Xshell Build 1326, Xftp Build 1222, and Xlpd Build 1224. Kaspersky Lab identified an instance of exploitation in the wild in August 2017.",
  "id": "GHSA-r7vf-6c3r-53c3",
  "modified": "2025-10-09T18:30:29Z",
  "published": "2025-10-07T21:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34252"
    },
    {
      "type": "WEB",
      "url": "https://securelist.com/shadowpad-in-corporate-networks/81432"
    },
    {
      "type": "WEB",
      "url": "https://usa.kaspersky.com/about/press-releases/shadowpad-attackers-hid-backdoor-in-software-used-by-hundreds-of-large-companies-worldwide"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20181022035109/https://www.netsarang.com/news/security_exploit_in_july_18_2017_build.html"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/netsarang-malicious-backdoor-supply-chain-compromise"
    }
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      "type": "CVSS_V4"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-34252 (GCVE-0-2025-34252)

FKIE_CVE-2025-34252

GHSA-R7VF-6C3R-53C3

Tags

Sightings

Nomenclature

Related by attack behaviour