OpenAFS up to 1.6.22/1.8.1 RPC Server information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability was found in OpenAFS up to 1.6.22/1.8.1 (File Transfer Software). It has been classified as problematic. This affects some unknown functionality of the component RPC Server. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:
An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. For example, RXAFSCB_TellMeAboutYourself leaks kernel memory and KAM_ListEntry leaks kaserver memory.
The bug was discovered 09/11/2018. The weakness was shared 09/12/2018 (Website). The advisory is shared at openafs.org. This vulnerability is uniquely identified as CVE-2018-16948 since 09/11/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.
The vulnerability scanner Nessus provides a plugin with the ID 117640 (Debian DLA-1513-1 : openafs security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176485 (Debian Security Update for openafs (DSA 4302-1)).
Upgrading to version 1.6.23 or 1.8.2 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (117640).
Product
Type
Name
Version
- 1.6.0
- 1.6.1
- 1.6.2
- 1.6.3
- 1.6.4
- 1.6.5
- 1.6.6
- 1.6.7
- 1.6.8
- 1.6.9
- 1.6.10
- 1.6.11
- 1.6.12
- 1.6.13
- 1.6.14
- 1.6.15
- 1.6.16
- 1.6.17
- 1.6.18
- 1.6.19
- 1.6.20
- 1.6.21
- 1.6.22
- 1.8.0
- 1.8.1
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 117640
Nessus Name: Debian DLA-1513-1 : openafs security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
Exposure Time: 🔍
Upgrade: OpenAFS 1.6.23/1.8.2
Timeline
09/11/2018 🔍09/11/2018 🔍
09/11/2018 🔍
09/12/2018 🔍
09/12/2018 🔍
09/21/2018 🔍
09/24/2018 🔍
09/11/2019 🔍
05/16/2023 🔍
Sources
Advisory: DLA 1513-1Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-16948 (🔍)
OVAL: 🔍
SecurityFocus: 106375 - OpenAFS CVE-2018-16949 Multiple Denial of Service Vulnerabilities
Entry
Created: 09/12/2018 09:48Updated: 05/16/2023 07:12
Changes: 09/12/2018 09:48 (76), 03/22/2020 21:16 (5), 05/16/2023 07:12 (4)
Complete: 🔍
Cache ID: 18:1A5:103
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