VDB-14833 · CVE-1999-0687 · BID 637

IBM AIX up to 4.3.2 ToolTalk ttsession Daemon privileges management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in IBM AIX up to 4.3.2. It has been rated as critical. Impacted is an unknown function of the component ToolTalk ttsession Daemon. This manipulation causes privileges management. This vulnerability appears as CVE-1999-0687. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in IBM AIX up to 4.3.2 (Operating System). Affected by this vulnerability is an unknown function of the component ToolTalk ttsession Daemon. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The ToolTalk ttsession daemon uses weak RPC authentication, which allows a remote attacker to execute commands.

The issue has been introduced in 08/12/1994. The weakness was presented 09/13/1999 as not defined advisory (Website). The advisory is shared at www1.itrc.hp.com. This vulnerability is known as CVE-1999-0687. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1858 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 588.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 637†). See VDB-14834, VDB-14835 and VDB-15368 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 588
Snort Message: PROTOCOL-RPC portmap ttdbserv request UDP
Snort Class: 🔍

Suricata ID: 2101274
Suricata Class: 🔍
Suricata Message: 🔍

Timelineinfo

08/12/1994 🔍
09/13/1999 +1858 days 🔍
09/13/1999 +0 days 🔍
06/21/2014 +5395 days 🔍
04/19/2026 +4320 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: www1.itrc.hp.com
Status: Confirmed

CVE: CVE-1999-0687 (🔍)
GCVE (CVE): GCVE-0-1999-0687
GCVE (VulDB): GCVE-100-14833

OVAL: 🔍

SecurityFocus: 637

See also: 🔍

Entryinfo

Created: 06/22/2014 00:48
Updated: 04/19/2026 12:12
Changes: 06/22/2014 00:48 (59), 04/13/2019 10:32 (1), 04/19/2026 12:12 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!