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CVE-1999-0013


Stolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.4, requiring local system access to exploit with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from ssh organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 1998, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.


Published

1998-01-22T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 8.4 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    NVD-CWE-Other
  • Type: Secondary
    CWE-522

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application ssh ssh 1.2.0 Yes
Application ssh ssh 1.2.1 Yes
Application ssh ssh 1.2.2 Yes
Application ssh ssh 1.2.3 Yes
Application ssh ssh 1.2.4 Yes
Application ssh ssh 1.2.5 Yes
Application ssh ssh 1.2.6 Yes
Application ssh ssh 1.2.7 Yes
Application ssh ssh 1.2.8 Yes
Application ssh ssh 1.2.9 Yes
Application ssh ssh 1.2.10 Yes
Application ssh ssh 1.2.11 Yes
Application ssh ssh 1.2.12 Yes
Application ssh ssh 1.2.13 Yes
Application ssh ssh 1.2.14 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For ssh's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.