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-rw-r--r--meta/recipes-core/meta/cve-update-db-native.bb239
1 files changed, 0 insertions, 239 deletions
diff --git a/meta/recipes-core/meta/cve-update-db-native.bb b/meta/recipes-core/meta/cve-update-db-native.bb
deleted file mode 100644
index 18af89b53e..0000000000
--- a/meta/recipes-core/meta/cve-update-db-native.bb
+++ /dev/null
@@ -1,239 +0,0 @@
-SUMMARY = "Updates the NVD CVE database"
-LICENSE = "MIT"
-
-INHIBIT_DEFAULT_DEPS = "1"
-
-inherit native
-
-deltask do_unpack
-deltask do_patch
-deltask do_configure
-deltask do_compile
-deltask do_install
-deltask do_populate_sysroot
-
-NVDCVE_URL ?= "https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-"
-# CVE database update interval, in seconds. By default: once a day (24*60*60).
-# Use 0 to force the update
-# Use a negative value to skip the update
-CVE_DB_UPDATE_INTERVAL ?= "86400"
-
-python () {
- if not bb.data.inherits_class("cve-check", d):
- raise bb.parse.SkipRecipe("Skip recipe when cve-check class is not loaded.")
-}
-
-python do_fetch() {
- """
- Update NVD database with json data feed
- """
- import bb.utils
- import bb.progress
- import sqlite3, urllib, urllib.parse, gzip
- from datetime import date
-
- bb.utils.export_proxies(d)
-
- YEAR_START = 2002
-
- db_file = d.getVar("CVE_CHECK_DB_FILE")
- db_dir = os.path.dirname(db_file)
-
- if os.path.exists("{0}-journal".format(db_file)):
- # If a journal is present the last update might have been interrupted. In that case,
- # just wipe any leftovers and force the DB to be recreated.
- os.remove("{0}-journal".format(db_file))
-
- if os.path.exists(db_file):
- os.remove(db_file)
-
- # The NVD database changes once a day, so no need to update more frequently
- # Allow the user to force-update
- try:
- import time
- update_interval = int(d.getVar("CVE_DB_UPDATE_INTERVAL"))
- if update_interval < 0:
- bb.note("CVE database update skipped")
- return
- if time.time() - os.path.getmtime(db_file) < update_interval:
- bb.debug(2, "Recently updated, skipping")
- return
-
- except OSError:
- pass
-
- bb.utils.mkdirhier(db_dir)
-
- # Connect to database
- conn = sqlite3.connect(db_file)
- c = conn.cursor()
-
- initialize_db(c)
-
- with bb.progress.ProgressHandler(d) as ph, open(os.path.join(d.getVar("TMPDIR"), 'cve_check'), 'a') as cve_f:
- total_years = date.today().year + 1 - YEAR_START
- for i, year in enumerate(range(YEAR_START, date.today().year + 1)):
- bb.debug(2, "Updating %d" % year)
- ph.update((float(i + 1) / total_years) * 100)
- year_url = (d.getVar('NVDCVE_URL')) + str(year)
- meta_url = year_url + ".meta"
- json_url = year_url + ".json.gz"
-
- # Retrieve meta last modified date
- try:
- response = urllib.request.urlopen(meta_url)
- except urllib.error.URLError as e:
- cve_f.write('Warning: CVE db update error, Unable to fetch CVE data.\n\n')
- bb.warn("Failed to fetch CVE data (%s)" % e.reason)
- return
-
- if response:
- for l in response.read().decode("utf-8").splitlines():
- key, value = l.split(":", 1)
- if key == "lastModifiedDate":
- last_modified = value
- break
- else:
- bb.warn("Cannot parse CVE metadata, update failed")
- return
-
- # Compare with current db last modified date
- c.execute("select DATE from META where YEAR = ?", (year,))
- meta = c.fetchone()
- if not meta or meta[0] != last_modified:
- bb.debug(2, "Updating entries")
- # Clear products table entries corresponding to current year
- c.execute("delete from PRODUCTS where ID like ?", ('CVE-%d%%' % year,))
-
- # Update db with current year json file
- try:
- response = urllib.request.urlopen(json_url)
- if response:
- update_db(c, gzip.decompress(response.read()).decode('utf-8'))
- c.execute("insert or replace into META values (?, ?)", [year, last_modified])
- except urllib.error.URLError as e:
- cve_f.write('Warning: CVE db update error, CVE data is outdated.\n\n')
- bb.warn("Cannot parse CVE data (%s), update failed" % e.reason)
- return
- else:
- bb.debug(2, "Already up to date (last modified %s)" % last_modified)
- # Update success, set the date to cve_check file.
- if year == date.today().year:
- cve_f.write('CVE database update : %s\n\n' % date.today())
-
- conn.commit()
- conn.close()
-}
-
-do_fetch[lockfiles] += "${CVE_CHECK_DB_FILE_LOCK}"
-do_fetch[file-checksums] = ""
-do_fetch[vardeps] = ""
-
-def initialize_db(c):
- c.execute("CREATE TABLE IF NOT EXISTS META (YEAR INTEGER UNIQUE, DATE TEXT)")
-
- c.execute("CREATE TABLE IF NOT EXISTS NVD (ID TEXT UNIQUE, SUMMARY TEXT, \
- SCOREV2 TEXT, SCOREV3 TEXT, MODIFIED INTEGER, VECTOR TEXT)")
-
- c.execute("CREATE TABLE IF NOT EXISTS PRODUCTS (ID TEXT, \
- VENDOR TEXT, PRODUCT TEXT, VERSION_START TEXT, OPERATOR_START TEXT, \
- VERSION_END TEXT, OPERATOR_END TEXT)")
- c.execute("CREATE INDEX IF NOT EXISTS PRODUCT_ID_IDX on PRODUCTS(ID);")
-
-def parse_node_and_insert(c, node, cveId):
- # Parse children node if needed
- for child in node.get('children', ()):
- parse_node_and_insert(c, child, cveId)
-
- def cpe_generator():
- for cpe in node.get('cpe_match', ()):
- if not cpe['vulnerable']:
- return
- cpe23 = cpe.get('cpe23Uri')
- if not cpe23:
- return
- cpe23 = cpe23.split(':')
- if len(cpe23) < 6:
- return
- vendor = cpe23[3]
- product = cpe23[4]
- version = cpe23[5]
-
- if cpe23[6] == '*' or cpe23[6] == '-':
- version_suffix = ""
- else:
- version_suffix = "_" + cpe23[6]
-
- if version != '*' and version != '-':
- # Version is defined, this is a '=' match
- yield [cveId, vendor, product, version + version_suffix, '=', '', '']
- elif version == '-':
- # no version information is available
- yield [cveId, vendor, product, version, '', '', '']
- else:
- # Parse start version, end version and operators
- op_start = ''
- op_end = ''
- v_start = ''
- v_end = ''
-
- if 'versionStartIncluding' in cpe:
- op_start = '>='
- v_start = cpe['versionStartIncluding']
-
- if 'versionStartExcluding' in cpe:
- op_start = '>'
- v_start = cpe['versionStartExcluding']
-
- if 'versionEndIncluding' in cpe:
- op_end = '<='
- v_end = cpe['versionEndIncluding']
-
- if 'versionEndExcluding' in cpe:
- op_end = '<'
- v_end = cpe['versionEndExcluding']
-
- if op_start or op_end or v_start or v_end:
- yield [cveId, vendor, product, v_start, op_start, v_end, op_end]
- else:
- # This is no version information, expressed differently.
- # Save processing by representing as -.
- yield [cveId, vendor, product, '-', '', '', '']
-
- c.executemany("insert into PRODUCTS values (?, ?, ?, ?, ?, ?, ?)", cpe_generator())
-
-def update_db(c, jsondata):
- import json
- root = json.loads(jsondata)
-
- for elt in root['CVE_Items']:
- if not elt['impact']:
- continue
-
- accessVector = None
- cveId = elt['cve']['CVE_data_meta']['ID']
- cveDesc = elt['cve']['description']['description_data'][0]['value']
- date = elt['lastModifiedDate']
- try:
- accessVector = elt['impact']['baseMetricV2']['cvssV2']['accessVector']
- cvssv2 = elt['impact']['baseMetricV2']['cvssV2']['baseScore']
- except KeyError:
- cvssv2 = 0.0
- try:
- accessVector = accessVector or elt['impact']['baseMetricV3']['cvssV3']['attackVector']
- cvssv3 = elt['impact']['baseMetricV3']['cvssV3']['baseScore']
- except KeyError:
- accessVector = accessVector or "UNKNOWN"
- cvssv3 = 0.0
-
- c.execute("insert or replace into NVD values (?, ?, ?, ?, ?, ?)",
- [cveId, cveDesc, cvssv2, cvssv3, date, accessVector])
-
- configurations = elt['configurations']['nodes']
- for config in configurations:
- parse_node_and_insert(c, config, cveId)
-
-
-do_fetch[nostamp] = "1"
-
-EXCLUDE_FROM_WORLD = "1"
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-25 02:12:39 +0000