Security readout for executives and security teams
Plain-English summary
This CVE describes theft of SSH credentials exposed through ssh-agent, letting another local user access remote accounts belonging to the agent user. Business risk is highest on shared systems where multiple users can log in locally and SSH keys protect sensitive infrastructure.
Executive priority
Treat this as a high-priority credential-protection issue for shared administrative infrastructure. Because the record is old and sparse, prioritize confirming whether modern vendor packages are affected before launching broad remediation.
Technical view
The record maps to CWE-522 and describes improper protection of credentials in ssh-agent. CVSS 3.1 is 8.4 with local attack vector, low complexity, no privileges or user interaction, and high confidentiality, integrity, and availability impact. The source bundle does not identify affected products or fixed versions.
Likely exposure
Exposure is most plausible on multi-user Unix-like hosts, jump boxes, build systems, or administrative workstations where users run ssh-agent. The provided CVE data lists vendor, product, and versions as n/a, so environment-specific exposure must be confirmed from vendor or OS guidance.
Exploitation context
The source bundle supports a local attack scenario against ssh-agent credentials. It does not state remote exploitation, public exploit availability, or active exploitation. CISA KEV status is false in the supplied data, so active exploitation should not be claimed from these sources.
Researcher notes
Evidence is limited. The CVE provides impact, credential-theft framing, CWE-522, and CVSS, but no named affected product, fixed release, or mitigation. Use it as a historical ssh-agent credential exposure reference and rely on vendor advisories for precise applicability.
Mitigation direction
- Check current SSH, OpenSSH, and operating-system vendor guidance for applicable fixes.
- Reduce use of ssh-agent on shared systems until exposure is understood.
- Restrict local shell access on sensitive administrative hosts.
- Review hardening for agent sockets and credential handling.
- Reassess jump hosts and bastions where SSH keys protect privileged access.
Validation and detection
- Inventory hosts where users run ssh-agent in multi-user environments.
- Confirm whether any vendor advisory maps this CVE to deployed SSH packages.
- Review local access controls for shared administrative systems.
- Verify agent credential exposure is covered by endpoint and host hardening baselines.
- Document whether compensating controls reduce local-user credential theft risk.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-522: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-1999-0013 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0013CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insufficiently Protected Credentials
Insufficiently Protected Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.